Melanoma can be divided into benign and malignant. Let's compare the differences between benign melanoma and malignant melanoma from four aspects.
Asymmetry: the two halves of a common nevus are symmetrical, while the two halves of a malignant melanoma are asymmetrical.
Edge: The edge of common nevus is smooth and clearly demarcated from the surrounding skin, while the edge of malignant melanoma is irregular and jagged. In addition, the rough surface has scaly or flaky desquamation, sometimes oozing blood or oozing blood, and the focus is higher than the skin.
Color: Ordinary moles are generally brown, tan or black, and malignant melanoma will be doped with pink, white and blue-black on the basis of brown or tan. Among them, blue is the most ominous, and white indicates that the tumor has spontaneous degeneration. Nodular malignant melanoma is always blue-black or gray.
Diameter: the diameter of common nevus is generally less than 5 mm, and the diameter of malignant melanoma is greater than 5 mm.
In addition, we should pay special attention to the itch and pain of moles. If this nevus continues to develop, it is likely to have ulcerative lesions, tingling or burning pain will be more obvious, satellite nodules will appear around or regional lymphadenopathy will appear. At this time, it shows that the condition has advanced to the advanced stage. It should be emphasized that it is difficult to distinguish the poorly structured nevus from early malignant melanoma only by naked eye observation, and the suspicious lesions should be biopsied in time to obtain pathological diagnosis.
The treatment of malignant melanoma includes surgery, chemotherapy, radiotherapy and immunotherapy. Among them, the metastatic focus of malignant melanoma can be treated by radiotherapy; Chemotherapy is an important means to prevent postoperative recurrence and metastasis.
Therefore, the treatment of melanoma should first distinguish between benign and malignant, so as to achieve early detection and early treatment.
I suggest you go to the hospital for a checkup. If it is melanoma, it should be treated as soon as possible.