Nevus, pigmented nevus, is a benign skin tumor, which is composed of nevus cells containing melanin. Common in the face, neck and other parts, mostly in infancy. Most pigmented nevus grow slowly or remain unchanged for many years, but once they exist, they rarely fade naturally. There may be different pigments such as brown or black, most of which are small punctate moles, and few of them are large. Pigmented nevus are mostly benign, so don't worry too much. However, very few can be malignant melanoma. For pigmented nevus or suspected malignant transformation located in palmoplantar and genital area, it should be surgically removed as soon as possible. Furuncle is called "pigmented nevus" in medicine. It is a benign tumor of the skin, which is differentiated from nerve cells. People of different ages and sexes may have boils. Generally speaking, boils are harmless to people, but boils that grow in special parts such as palms, soles of feet and lips need attention. Because these parts are prone to friction, resulting in malignant transformation of boils and malignant melanoma. Therefore, it is suggested that long boils in special parts should be removed in time. This operation can be done in an outpatient clinic. After the operation, it is best to do pathological section in the cut part to observe whether there is any change, whether it is clean, benign or malignant.

The boils at the back of the neck may become malignant due to friction. It is best to go to the dermatologist to decide whether surgery is needed.

Except boils in special parts, boils in other parts of the body are generally divided into intradermal nevus, crossed nevus and mixed mole. Intradermal nevus is more common, generally protruding on the skin surface, relatively large, relatively round, black, and may have hair on it. This kind of mole is safe and generally does not need treatment. Cross-border moles generally appear at the junction of epidermis and dermis, which are not higher than the skin surface to the touch, generally hairless and relatively dark in color. If this boil is damaged, painful, running water, or surrounded by satellite ovens, it means that it has become malignant and should be removed in time.

In addition, it should be reminded not to blindly use laser, Dot mole and other methods to remove boils. Because if the laser is not done well, it looks clean on the surface and can't be completely eliminated in fact; Repeated laser treatment will worsen boils. Dot mole has not been completely removed, and it may become malignant after repeated stimulation.

References:

Baidu (the world's largest Chinese search engine)