What is the reason for a child to have a mole

Most moles on children are caused by localized pigmentation abnormalities on the skin. Moles can be caused by either congenital or acquired factors. They are generally eye-catching and appear in obvious places, affecting the overall appearance of the person. As long as they are not pathological factors, they do not require treatment.

What is a mole?

A mole is a localized abnormality of skin pigmentation that can be present at birth or acquired later in life. A healthy person usually has 15 to 20 moles on their skin. Most of these moles are benign and do not require treatment. But some moles grow on the face and affect the appearance, and different methods can be used to remove them. The commonly used methods of mole removal are as follows: laser method, freezing method, electrocautery method, spot removal machine method and chemical agent method.

Black hairy nevus is a type of pigmented nevus. It often attracts special attention because of its local blackening, rough and raised skin, and hard short hairs. Moles occurring in parts of the body that are prone to friction or injury should be taken seriously. For example, if the mole grows rapidly, becomes lighter or darker in color, the short hair on the mole falls off, the area around the mole turns red, bloodshot can be seen, the surface has ulcers and scabs, or even ulcers that do not heal for a long time are formed. Swollen lymph nodes nearby, or the appearance of small satellite moles around the large mole, all indicate that the mole has a tendency to become malignant. You should go to the hospital to ask a dermatologist or surgeon for diagnosis so that timely treatment can be provided.

For the treatment of black hairy nevus, small nevus with a diameter of less than 0.5 cm can be cauterized with laser or high-frequency electric knife. The advantages are simple operation, less damage to normal tissue, and small scars after healing; the disadvantages are that it is difficult to retain nevus tissue for pathological examination and it is not easy to remove it completely. There are also methods of mole removal such as freezing and chemical corrosion, but they are not suitable because of the side effects of incomplete removal and stimulation of malignant transformation of mole cells. The above shortcomings can be compensated by using trephine to remove the nevus. Use a piercing drill that is 0.2 cm larger than the diameter of the mole to drill the entire mole after local skin anesthesia. The incision only needs to be sutured with one stitch using very fine silk thread. Since 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 better.