Miss Li recently used the potion at a roadside stall to spot off the moles on her face to realize her wish for a white and flawless face. But the good times did not last long, more than 2 months later, the original place where the mole appeared again black spots, and around the red, itchy. Miss Li was terrified and went to the hospital to know that this might be a malignant phenomenon caused by incomplete mole spotting. Why do these phenomena occur after mole spotting? The reporter interviewed Dr. Liu Zhongrong of the Department of Dermatology of Guangzhou Military General Hospital with this question. Random mole spotting may cause malignant transformation Moles can be pathologically divided into junctional moles (mole cells within the epidermis), intradermal moles (mole cells in the dermis under the epidermis) and mixed moles (mole cells in both the epidermis and the dermis), most of which are benign, but very few of them may develop malignant transformation. Interdermal nevi are easy to spot within the epidermis, but they are prone to malignant changes if not completely spotted; intradermal nevi and mixed nevi are often deeper, and melanocytes exist not only in the epidermis but also in the dermis, so spotting nevi is easy to produce irregular scars, not easy to cure, and prone to recurrence. Currently, the main methods used to remove moles are chemical erosion, laser, freezing, electrocautery and surgical excision. Dr. Liu suggests that it is better to remove moles by surgical excision because many chemical and physical methods of mole spotting are difficult to be complete and may stimulate benign moles to become malignant melanoma. Mole cutting is more thorough than mole spotting, there is no risk of malignant transformation, and although there are scars, they are more regular and really achieve cosmetic effect. A mole suddenly becomes larger, its color becomes uneven, its edges are uneven, the surrounding area is red, black spots appear, and there are satellite foci, all of which are the main manifestations of mole malignancy, Dr. Liu reminded. He also stressed that if the diameter of a mole is larger than 6 mm, there is a greater possibility of malignant transformation. Early in situ melanoma is easy to be treated as a mole. Mr. Zheng had a soy-sized mole by his ear, which recently became a bit bigger, and he went to a small clinic to have it removed with a laser. A few months later, he suddenly found several new moles growing on the side of his ear, and only after going to the hospital did he realize that this small mole was already a malignant in situ melanoma, and the small clinic failed to diagnose it correctly. Melanoma is a skin tumor with a high degree of malignancy, and now Mr. Zheng regrets it too much. In response to Mr. Zheng’s case, Dr. Liu explained that early in situ melanoma and some moles are not easy to distinguish, such as with the method of mole spotting, which can easily make melanoma metastasize and spread to metastatic melanoma. If you use the method of mole cutting, although you cannot be sure of the cure, the possibility of spread is much lower. Dr. Liu Zhongrong mentioned that although mole removal may stimulate malignant transformation of mole cells, the probability is still very low. If a mole has been removed by physical or chemical methods, there is no need to worry too much, as long as you observe carefully, and if malignant transformation is manifested, go to hospital for examination and seek medical treatment in time. For smaller moles, it is not a big problem not to remove them, but if the moles are located in special parts such as palmoplantar, lip red and vulva or congenital moles with diameter greater than 6mm, it is better to remove them before 30 years old because the possibility of malignant change of these moles is greater; at the same time, he suggests consumers to go to regular hospitals for mole cutting surgery such as cosmetic surgery and dermatology, and to cut facial moles more cautiously. After mole surgery, histopathological examination should be conducted to clarify whether the mole is cleanly cut, whether it is benign or malignant, and to what extent the malignant ones have developed, so that timely treatment can be prescribed to prevent misdiagnosis. In short, nevus should not be neglected, if it is not treated, it should be treated thoroughly. Note on mole surgery: 1. The stitches can be removed only after 5 to 7 days after facial mole surgery, and can leave no traces basically after 3 to 6 months. 2. 2. Pay attention to prevent infection after surgery, and pay attention to cleanliness in summer, and use 75% alcohol for disinfection.