What are the common sites of melanoma? What are the symptoms of melanoma?

The surface of the skin is a common site for melanoma, especially the soles of the feet, palms of the hands, vulva, and around the anus which are prone to friction. The head and face which are often exposed to sunlight are also prone to melanoma. In addition, the skin mucosa, choroid of the eyes and other parts are also common sites for melanoma.

1. Skin surface <br/>The skin surface is a common site for melanoma, especially when melanin moles on the skin surface are repeatedly rubbed and exposed to ultraviolet rays for a long time, which can easily lead to malignant transformation and melanoma. Therefore, the soles of the feet, palms, vulva, and areas around the anus that are easily rubbed, and the head and face that are often exposed to the sun and repeatedly exposed to ultraviolet rays from the sun are prone to melanoma.
2. Skin and mucous membranes <br/>In addition to the skin surface, the subcutaneous mucosa and the skin layer under the nails are also prone to melanoma.
3. Choroid <br/>When the disease occurs, solid tumors of varying depths, brown or gray in color, can be seen at the fundus, causing eye pain, blindness, etc.