Long spots on the back of the hand

Introduction The long spot on the back of the hand refers to the symptoms of pigmentation on the back of the hand.

Cause

1. Toxin accumulation: Toxins in the skin can activate the activity of **, and also produce an oxidation reaction with tyrosinase to produce "dopa" to release melanin. The pollution, radiation, and smoke that have to be faced in life will aggravate the oxidation process and make the skin tone darker and uneven.

2, suffering from stimulation: In order to repair inflammation, the skin will naturally react to secrete an alkenoic acid, and this substance will activate tyrosinase to promote melanin production to some extent.

3. Ultraviolet: In the process of melanin production, the most direct effect comes from the ultraviolet rays in the sun. It activates tyrosinase in melanocytes and produces a series of reactions with tyrosinase in the blood, producing a substance called "dopa" that is converted to melanin.

an examination

Related inspection

Skin smear microscopy

Skin smear microscopy can be performed.

Differential diagnosis

Can be distinguished from the long spots on the face.

Be careful with long spots on your face. Chinese medicine believes that the skin is closely related to the organs, meridians, qi and blood. Only the function of the organs is normal, the blood and blood are filled, the meridians are smooth, the body and the face are not easy to age, the skin is smooth and delicate, and no spots are generated.

The material in this site is intended to be of general informational use and is not intended to constitute medical advice, probable diagnosis, or recommended treatments.