1, ear pigmented nevus verrucous nevus
I believe many friends will be troubled by all kinds of moles. These moles will not only affect our beauty, but also seriously affect our self-confidence and health. Microscopically, pigmented nevus is composed of a group of melanocytes arranged in a nest. Most of them are light brown to black patches with clear boundaries on skin and mucosa, which are round or oval, and some of them may have a small amount of hair. Verrucous nevus belongs to congenital epidermal verrucous hyperplasia.
2. Which one needs timely treatment?
Although pigmented nevus is benign, there are still some pigmented nevus with potential malignant transformation. In the movie If You Are the One 2, li xiangshan, played by Sun, committed suicide due to malignant melanoma, which made many people realize for the first time that moles can also be malignant, but it also brought confusion to the public. How can ordinary people who are not medical professionals judge which mole needs to go to the hospital in time to avoid tragedy?
1) site: nevus located in the frequently rubbed site;
2) Manifestations: Abnormal symptoms such as irregular edge, uneven pigment, surface ulceration and satellite-like lesions around suddenly increased in a short time;
3) Size: huge area, located in exposed areas such as face (such as auricle). ), affecting the appearance;
4) History: Recurrence or residue after non-surgical treatment (such as laser and chemical cautery).
3. What are the treatments?
According to the size and location of moles, there are two treatments for blacks: non-operation and operation.
1) For moles with a diameter less than 1mm, non-surgical treatment such as laser can be used;
2) For the nevus with a diameter greater than 1mm, direct excision or local flap transfer should be adopted for repair, and the excised lesion should be sent for pathological examination to determine whether it is benign or malignant; The whole operation clinic is completed, and you can go home without hospitalization after operation. Non-surgical treatments such as laser can easily lead to recurrence, residue or scar, and it is impossible to do pathological examination: to clarify the nature of the lesion;
3) For giant moles (such as covering the whole auricle or upper and lower eyelids). ), skin grafting or skin flap should be used for treatment, and hospitalization for 5~7 days is safe and painless.
4, postoperative care matters needing attention
(1) The operation area should be kept dry and clean. According to the different surgical sites, the stitches were removed 7 ~ 10 days after operation and moistened with water 24 hours after the stitches were removed.
(2) After stitches are removed 1 week, scar removal drugs can be used to prevent scar hyperplasia and obtain a good aesthetic appearance;
(3) Pay attention to taboos, do not eat spicy food, do not smoke or drink, and do not expose yourself to the sun in the operating area within 6 months.
5. How are moles formed?
1, congenital genetic factor
Some people are more likely to produce pigments and grow moles than ordinary people because of genetic reasons. In addition, there is autosomal inheritance, and there are spots the size of rice grains that are heavy in spring and summer and light in autumn and winter, which are easy for girls over 5 years old.
2, endocrine disorders
The function of endocrine system of the body also has an influence on the formation of nevus. Hormone changes in puberty or female physiological period and pregnancy may cause endocrine disorders, and the possibility of forming moles increases during this period.
3, ultraviolet overexposure
Long-term exposure of the skin to strong ultraviolet rays can easily lead to the formation of melanin and pigment deposition, thus leading to the formation of moles. Moreover, intense ultraviolet radiation may also darken the original light spots on the face and form moles.
4. Bad living habits
Frequent stress in life, or lack of sleep for a long time and poor sleep quality will lead to impaired skin function and the formation of moles. In addition, improper diet will lead to the increase of calories in the body and the accumulation of toxins, which will also lead to the formation of moles.
5, the influence of neurological factors
People who are depressed and emotionally unstable for a long time are also prone to form moles. When the mood is unstable, the melanocyte stimulating hormone secreted by the pituitary gland will increase, leading to an increase in melanin, which is easy to form pigmentation and form spots and moles.