Moles are common in medicine, including pigmented moles. 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 easily stimulated by friction, such as moles on the palms, soles, 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 stimulate 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.