Skin that tans when exposed to the sun is usually formed due to the high level of melanocytes contained within the skin. People who have more melanocytes are more likely to absorb the ultraviolet rays of the sun, which results in a greater susceptibility to tanning.
The melanocytes in the body produce melanin. And these melanin usually adheres to the fiber layer within the melanocytes. When the human body is exposed to ultraviolet rays, these melanin will absorb the ultraviolet rays that penetrate the skin, so as to achieve the purpose of protecting the skin, but the skin is also easy to be tanned. Therefore, for patients whose skin darkens when exposed to the sun, it is usually due to the high level of melanin in the skin.
The essence of the skin is that the skin’s self-protection mechanism plays a role, but if the skin has been sunburned, it is recommended to go to a regular hospital in time for treatment.