Nevus are localized skin pigment abnormalities, which can occur at birth or the day after tomorrow. Healthy people can usually find 15 ~ 20 moles on the skin. Most of these moles are benign and do not need treatment. But there are some moles on the face, which affect the appearance and can be removed in different ways. There are several commonly used methods to remove moles: laser method, freezing method, electrocautery method, spot scanning method and chemical agent method.
Black spot nevus is a kind of pigmented nevus, which often attracts special attention because of its local blackening, rough skin and long hard and short hair. Attention should be paid to moles that occur in parts of the body that are vulnerable to friction or injury, such as rapid growth and increase of the body, fading or deepening of the color, shedding of short hairs on the mole, redness around the mole, faintly visible bloodshot, festering and scabbing on the surface, and even forming lasting ulcers. Nearby lymph node enlargement, or some small satellite-like nevus around the big nevus, all indicate that the nevus has a tendency to malignant transformation. You should go to the hospital to ask a dermatologist and a surgeon for diagnosis, so as to deal with it in time. For the treatment of black spot nevus, small nevus with a diameter less than 0.5 cm can be cauterized by laser or high frequency electrotome. Its advantages are simple operation, less damage to normal tissues and less scar after healing. The disadvantage is that it is difficult to take the nevus tissue for pathological examination and it is not easy to remove it. There are also freezing and chemical etching to remove moles, which are not suitable because of the impurity and malignant transformation of nevus cells. Resection of pigmented nevus by trephine can make up for the above shortcomings. After local skin anesthesia, the whole pigmented nevus is drilled with a trephine 0.2 cm larger than the diameter of the nevus, and the incision can be sutured with fine thread. Because the long axis of the incision is consistent with the skin lines or expression lines, the postoperative scar is not obvious and the cosmetic effect is good.
What kind of mole should be removed?
Dr. Li pointed out that in addition to aesthetic factors, in order to avoid becoming malignant melanoma, the following kinds of moles should be removed:
1. moles that rub for a long time, such as those on bras and waists.
2. Nevus with atypical changes. Nevus with atypical appearance may become malignant, such as very dark nevus, uneven (mottled) pigment, uneven or irregular edge, unclear boundary, asymmetric left and right, and statistically larger than 5 mm in diameter.
3. A mole will change suddenly and rapidly. If the mole of the whole body changes at the same time because of the change of the black door, there is no doubt about it. If a single mole changes suddenly and rapidly, it is worth noting.
4. moles that grow in special parts. For example, moles growing on limbs (hands and feet) must be observed, because moles in these places are more likely to become malignant melanoma than moles in other places.
5. Mucosal nevus. Moles on oral mucosa, conjunctiva, foreskin.
6. Nail groove nevus. The nail groove is connected with the skin under the nail, which may grow under the nail and be blocked by the nail, so it is not easy to see the change, and it grows at the end and is more likely to become malignant in the future.
7. Some moles are high-risk moles. The moles that babies can see at birth are called congenital moles, and there are not many congenital moles. According to statistics, 1% of newborns have moles. Not all congenital moles are inherently dangerous, and size is an important factor. Generally speaking, the bigger the mole, the greater the possibility of malignant transformation in the future, so the doctor suggested to remove it as soon as possible.
Some people have the physique of swollen crab feet, and scar tissue will proliferate abnormally, resulting in hypertrophic scars. Crab foot swelling is common in earlobe, shoulder, upper arm, chest and back, but not in face. If people with this physique want to get rid of moles for beauty, they should first inform the doctor of their physique so as not to get rid of moles for big scars.
Dangerous malignant melanoma
Ou, a plastic surgeon at MacKay Hospital in Taipei, said that benign nevus can turn into malignant melanoma: protrusion, excessive melanin, itching, pain, bleeding and ulcers.
Skin cancer mainly includes three types: malignant melanoma, basal cell carcinoma and squamous cell carcinoma.
Malignant melanoma accounts for 4% of all skin cancers, but it leads to nearly 80% of skin cancer mortality, which is one of the worst prognosis of all cancers. 10 ~ 15% patients with malignant melanoma have a family genetic history. The incidence of malignant melanoma in yellow race is lower than that in white race.
It is pointed out that 70 ~ 80% of malignant melanoma in China is acromegaly nevus, which is characterized by its predilection in palm, sole and other parts that may not be exposed to sunlight, as well as in body mucosa. Malignant melanoma of acromegaly often invades the skin basement membrane vertically and invades subcutaneous blood vessels or lymphatic vessels when the tumor is still very young, and then metastasizes. Once metastasized, the prognosis is extremely poor, and the three-year survival rate is only about 10%.
Nevus may change, some changes are warning signals, they will become malignant, and some changes are benign. ......& gt& gt
Question 2: How is the mole on the face? Pigmented nevus is very common in medicine. More than 90% of people with benign tumors of the melanocyte system can find moles, but the size and number are different. Benign tumors are likely to become malignant, and moles are no exception, but according to statistics, this possibility is very small, and only about one in a million moles will become tumors. If there is hair on the surface of your mole, you can rest assured, because hairy moles are mostly benign. In pathological diagnosis, borderline nevus is the most common nevus that usually causes malignant transformation, while intradermal nevus is not easy to malignant transformation. Pay attention to the parts that are easy to be rubbed, such as moles on the palm, sole, face and neck. Friction and tingling in the nursery are one of the reasons for promoting cancer. If you find the following conditions, you should seek a doctor's diagnosis as soon as possible.
(1) increases rapidly in a short time, and the color becomes dark or uneven;
② Ulcer, bleeding and scabbing;
(3) redness or satellite nevus around;
(4) Sudden obvious itching or tingling.
In this case, doctors usually remove the nevus together with the surrounding and deep tissues, and send the specimens for pathological examination. If it is indeed malignant melanoma, further comprehensive treatment is needed.
Almost everyone has a mole. Melanoma can be divided into flat nevus, finch nevus, hairy nevus, animal skin-like nevus and so on. Some people are worried about moles. In fact, nevus is a benign tumor containing melanocytes, which usually does not or rarely undergo malignant transformation. According to statistics, malignant transformation only accounts for hundreds of thousands or millions of people. However, it may also become malignant, and we must pay enough attention to it.
Signs of malignant transformation of nevus are: sudden growth, rapid expansion, dark and bright color, redness around, inflammation and pain, smooth and rough surface, nevus depilation, exudation or bleeding and ulceration of nevus, swelling of nearby lymph nodes, formation of small lumps in nevus or satellite nevus around.
Treat moles without fear or paralysis. Pay attention to them, but don't disturb them. Don't rub, corrode or have moles at ordinary times to prevent cancer cells from rapidly differentiating and causing malignant transformation. Pay special attention to the sudden increase, deepening color, rough surface keratinization of moles, and go to the hospital as soon as possible.
As parents, we should pay attention to the changes of moles on children. Melanoma, the deadliest malignant tumor in skin cancer, is generally considered to be a disease of adults who have been exposed to the sun for many years. In fact, children with large moles at birth, family history of melanoma or skin allergies are prone to this disease.
According to a survey published by American Dermatology Association in 1990, there are about 1000 melanoma patients under the age of 20 in the United States every year, and many of them die because of delayed treatment. The reason for the delay is that their parents failed to find the cancerous lesions on their skin in time. The best way to treat this disease is early surgery.
Therefore, parents should find out what moles are on their children and pay attention to check their changes. If you have a hemorrhagic mole or a mole that has exceeded the diameter of the pencil eraser, you should see a doctor as soon as possible.
In addition, under normal circumstances, the skin will not be permanently deformed after slight friction, collision or extrusion, which is mainly related to the elasticity of the skin. If the skin loses its elasticity and its shape changes, we should seriously look for the reasons.
Question 3: Why do moles grow on the face for no reason? Uh, the answer upstairs is speechless.
Generally speaking, moles are the result of melanocyte precipitation in the body.
It doesn't have to grow on the face, but other parts of the body can.
Reducing ultraviolet radiation mainly means reducing sun exposure.
Supplementing proper amount of vitamin C E A at the doctor's suggestion can effectively prevent and reduce melanin deposition.
Of course, it is also good to eat more fruits at ordinary times. Most people don't get moles when they are 30.
Some people may have Dot mole, but it will fade or even disappear.
So never mind.
I hope I can help you.
Question 4: Why does the mole always grow on the face? 1, the method of removing moles from food.
If the mole is lighter or less in color, it can be removed with some foods that are very easy to see at ordinary times.
① Peach blossom melon seeds honey: dry peach blossoms in the shade and grind winter melon seeds into powder. Adjust the amount of honey to equal parts and apply it to your face. Apply it to the affected area every night before going to bed. Moles are painted. Efficacy cleansing and freckle removal. Suitable for moles, dark spots and freckles.
② Tomato juice: 1 eggplant, slice and juice, rub the part with mole, 1 3 times a day, and the effect can be seen in ten days.
Note: this method is only applicable to friends with shallow moles.
2, laser to remove moles
Now many hospitals can use lasers to remove moles. The advantage of this method is that it can quickly and thoroughly remove relatively large moles, but the disadvantages are also obvious. If it fails, it will leave obvious scars and the cost will be more expensive.
3. Potions for removing moles
The advantage of removing moles with liquid medicine is that it is more convenient and can be operated at home. Moreover, the price of liquid medicine is cheaper than laser mole removal, and larger moles can also be removed. The disadvantage is that there are many counterfeit products on the market, and it is easy to buy invalid ones.
Question 5: Why is there always a mole on the face? If it is melanin precipitation, cancer cells and moles, it doesn't matter, as long as you apply concealer products, it will be ok ~ moles are normal, and basically everyone has them. Note: Eat more fruits and vegetables and less junk food and soy sauce! If there is a mole, it is best not to drop it and not to use a laser. Nevus can also be regarded as a kind of cancer cell in human body. If you don't arrange them properly, cancer cells will spread and become warped easily. There are examples ~ eat some tomatoes and do more skin care, you can pull!
Question 6: Why do many moles grow inexplicably on the face? Hello, landlord
Most people don't care about "moles", they just try to get rid of those moles that are unsightly. In fact, the biggest harm of moles is canceration. Therefore, any mole with the following characteristics should be removed as soon as possible:
Moles that grow in areas that are easy to rub may have a higher chance of becoming malignant; Sunlight or ultraviolet rays are more likely to increase the chance of changes in moles, so it is best to remove moles that grow in obvious exposed parts;
The mole on the sole of the foot is the most common part of melanoma. Medical statistics show that many moles at the ends of limbs are malignant, such as moles under fingers or nails, which should be paid special attention to. Patients are usually advised to have preventive resection.
Some moles have the following changes, such as sudden growth of moles too fast, inflammation, ulceration, easy bleeding, uneven color, growth range, or touching the area near moles can find local lumps, so you should see a doctor as soon as possible.
At present, the methods to remove moles usually include chemical corrosion, electrocautery, laser and plastic surgery. Good effect, no pain and less scar. It is best to send the cut nevus for pathological examination to determine whether there is malignancy.
The content is for reference only. If you need to solve specific problems (especially in the fields of law and medicine), I suggest you consult professionals in related fields in detail. I hope I can help you adopt it!
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Question 7: Why are there more and more moles on the face in recent years? Dot mole is a localized abnormal skin pigment, which can be congenital or acquired. Healthy people can usually find 15 ~ 20 moles on the skin. Most of these moles are benign and do not need treatment. But there are some moles on the face, which affect the appearance and can be removed in different ways. There are several commonly used methods to remove moles: laser method, freezing method, electrocautery method, spot scanning method and chemical agent method. Black spot nevus is a kind of pigmented nevus, which often attracts special attention because of its local blackening, rough skin and long hard and short hair. Attention should be paid to moles that occur in parts of the body that are vulnerable to friction or injury, such as rapid growth and increase of the body, fading or deepening of the color, shedding of short hairs on the mole, redness around the mole, faintly visible bloodshot, festering and scabbing on the surface, and even forming lasting ulcers. Nearby lymph node enlargement, or some small satellite-like nevus around the big nevus, all indicate that the nevus has a tendency to malignant transformation. You should go to the hospital to ask a dermatologist and a surgeon for diagnosis, so as to deal with it in time. For the treatment of black spot nevus, small nevus with a diameter less than 0.5 cm can be cauterized by laser or high frequency electrotome. Its advantages are simple operation, less damage to normal tissues and less scar after healing. The disadvantage is that it is difficult to take the nevus tissue for pathological examination and it is not easy to remove it. There are also freezing and chemical etching to remove moles, which are not suitable because of the impurity and malignant transformation of nevus cells. Resection of pigmented nevus by trephine can make up for the above shortcomings. After local skin anesthesia, the whole pigmented nevus is drilled with a trephine 0.2 cm larger than the diameter of the nevus, and the incision can be sutured with fine thread. Because the long axis of the incision is consistent with the skin lines or expression lines, the postoperative scar is not obvious and the cosmetic effect is good. What kind of mole should be removed? Dr. Li pointed out that in addition to aesthetic factors, in order to avoid becoming malignant melanoma, the following kinds of moles should be removed: 1 Moles that rub for a long time, such as those on bras and waists. 2. Nevus with atypical changes. Nevus with atypical appearance may become malignant, such as very dark nevus, uneven (mottled) pigment, uneven or irregular edge, unclear boundary, asymmetric left and right, and statistically larger than 5 mm in diameter. 3. A mole will change suddenly and rapidly. If the mole of the whole body changes at the same time because of the change of the black door, there is no doubt about it. If a single mole changes suddenly and rapidly, it is worth noting. 4. moles that grow in special parts. For example, moles growing on limbs (hands and feet) must be observed, because moles in these places are more likely to become malignant melanoma than moles in other places. 5. Mucosal nevus. Moles on oral mucosa, conjunctiva, foreskin. 6. Nail groove nevus. The nail groove is connected with the skin under the nail, which may grow under the nail and be blocked by the nail, so it is not easy to see the change, and it grows at the end and is more likely to become malignant in the future. 7. Some moles are high-risk moles. The moles that babies can see at birth are called congenital moles, and there are not many congenital moles. According to statistics, 1% of newborns have moles. Not all congenital moles are inherently dangerous, and size is an important factor. Generally speaking, the bigger the mole, the greater the possibility of malignant transformation in the future, so the doctor suggested to remove it as soon as possible. Some people have the physique of swollen crab feet, and scar tissue will proliferate abnormally, resulting in hypertrophic scars. Crab foot swelling is common in earlobe, shoulder, upper arm, chest and back, but not in face. If people with this physique want to get rid of moles for beauty, they should first inform the doctor of their physique so as not to get rid of moles for big scars. Dangerous Malignant Melanoma Ou, a plastic surgeon at Taipei MacKay Hospital, said that a benign nevus will turn into malignant melanoma due to prominent melanin, extreme, itching, pain, bleeding and ulcer. Skin cancer mainly includes three types: malignant melanoma, basal cell carcinoma and squamous cell carcinoma. Malignant melanoma accounts for 4% of all skin cancers, but it leads to nearly 80% of skin cancer mortality, which is one of the worst prognosis of all cancers. 10 ~ 15% patients with malignant melanoma have a family genetic history. The incidence of malignant melanoma in yellow race is lower than that in white race. It is pointed out that 70 ~ 80% of malignant melanoma in China is acromegaly nevus, which is characterized by its predilection in palm, sole and other parts that may not be exposed to sunlight, as well as in body mucosa. Malignant melanoma of acromegaly often invades the skin basement membrane vertically and invades subcutaneous blood vessels or lymphatic vessels when the tumor is still very young, and then metastasizes. Once metastasized, the prognosis is extremely poor, and the three-year survival rate is only about 10%. Nevus may change, some changes are warning signals, they will become malignant, and some changes are benign. Whether the nevus is malignant or not can be determined by biopsy.
Question 8: Why is the mole on the face always long? This long mole must be a problem with the body's excretory system, mainly the liver. In your case, the burden of liver detoxification is very heavy, and some metabolites can be mixed into the blood to grow moles. I suggest you go to the hospital to see what kind of mole you belong to and rule out the possibility of malignant transformation.
Question 9: Why do moles often grow on the face? Because your face is not clean. If it is a small meat mole (that is, a protruding mole), it means that dirt and dust in the air stick to the face, but it is not cleaned up afterwards. This will happen. If it's not a mole, it's natural.
Question 10: Why do you get moles on your face? Not before. It is normal. This is the cause of melanin formation.
Affected by internal and external factors, people will grow moles on their faces and bodies during their growth. Moles are composed of melanocytes located at the junction of skin surface and dermis, some of which are shallow and some are deep. Because of the different number of melanocytes, moles can be higher than the skin surface, even as high as the skin, with different colors and sizes.
Generally speaking, as long as the mole on the body does not seriously affect the appearance and has no tendency to become malignant, there is no need to remove it. Of course, moles are not impossible to remove. Moles above the skin surface can be removed by freezing, surgery and other methods, but there is a risk of leaving scars. At present, there is a kind of laser emitted by precious stones, which is used to illuminate the places with moles. After absorbing heat, the melanocytes in the nevus will explode like balloons (medically called biological detonation therapy), and the pigment particles will become tiny fragments and be removed by tissue cells. This treatment does not damage the epidermis, leaving little chance of scar, but it needs to be repeated many times, with an interval of more than three months each time, which is long and costly.
There are not many opportunities for moles to become malignant, but if the skin is white and often basks in the sun, it will increase the chances of moles becoming malignant. Some signs often indicate that the mole may become malignant: the mole suddenly becomes larger, the color deepens, and there is itching or pain; Ulcer appeared locally in nevus; Some small moles grow around the moles (called mother-child moles in folk and satellite moles in medicine). Once you find the above phenomenon, you should go to the hospital as soon as possible and get rid of it as soon as possible. After removing the mole, you must do pathological examination and observe whether there are malignant cells under the microscope. In addition, moles on palms and soles are prone to malignant transformation due to frequent friction, and should be removed as soon as possible.
In short, there are many tricks for moles. In the eyes of fools, moles are not desirable. If it is unsightly, you'd better use your brain first and think twice before you get rid of the mole.
Reminder: Dot mole potion is very dangerous.
Dot mole method, a popular disposable potion in the market, seems convenient, but in fact it is very dangerous, so don't try it easily. In fact, Dot mole wants to "rot" a layer of epidermis to remove moles. Generally, only superficial moles can be removed, but it is ineffective for deep moles. In addition, because the epidermis is very thin, the operator will "rot" the whole epidermis without paying attention, which is easy to leave ugly scars. What is more noteworthy is that if the nevus is repeatedly infected, it is easy to become malignant and form a highly malignant tumor.