Black spots on his body

Long black spots on the body, most of them are local melanin cell function enhancement, melanin increased caused, can also be caused by the proliferation of melanin cells themselves. Common are melanocytic nevus, freckle-like nevus, also known as black nevus. The elderly are more common with senile freckle-like nevus, also known as age spots, or seborrheic keratosis, also known as senile warts, can be expressed as grayish brown to black spots. There are also inflammatory diseases that can cause local melanin increase and show black spots, such as pigmented lichen planus, pigmented roseola, gray skin disease, melanosis, etc. Finally, do not forget a very important disease, melanoma on the skin. This is a malignant disease, with its own characteristics: uneven pigmentation, unclear boundaries, spontaneous rupture, bleeding, itching. Be sure to identify and early detection.