Moles and birthmarks. You can see the progress of moles!

Mole is a common skin disease, which develops slowly and generally does not have symptoms. Generally speaking, moles include brown and black "pigmented moles", bright red, purple or dark red "vascular moles" and cyan moles. Pigmented nevus is mainly caused by pigmentation or hyperplasia of connective tissue of hair nipple. There are many kinds of pigmented nevus, and their sizes and colors are different. Pigmented nevus may turn into malignant melanoma, but this malignant transformation rarely occurs.

"Birthmark" is due to the accumulation of many pigment cells in the dermis, which usually occurs in the sacrum and arms of newborns. "Birthmark" is not a disease, but a manifestation of human racial characteristics. The so-called "birthmark" usually refers to the congenital skin localized pigment abnormality that exists at birth or appears after birth.