What is the reason for the long spots on the back of the hand

The spots on the back of the hand may be of the following types. The most common is age spots, that is, seborrheic keratosis, mostly occurring in middle-aged and elderly people. The performance is dark brown or black flat maculopapules, rough surface, oily keratosis scales, which are benign lesions, which can be removed by laser, freezing treatment, or external coating of vitamin A acid preparations. The second is flat warts, which are good for young people. Polyangular skin color or pale brown flat papules. HPV virus is caused, often accompanied by facial hair. The third condition is lentigo, which looks like freckles or mild age spots. In rare cases, it is malignant. The fourth condition is solar keratosis, which is a precancerous lesion. The skin lesions also look like seborrheic keratosis. Therefore, if you show hand spots, you should go to the hospital for a dermatological examination.