When the weather is too hot, without proper sun protection, there is a risk of skin darkening.
Generally speaking, the weather is too hot, will cause the body’s blood circulation increases and metabolism increases, then there will be obvious symptoms of increased sweating. If the patient is indoors and is not exposed to sunlight, and the skin does not receive excessive ultraviolet rays, the skin will not produce melanin aggregation and will not cause darkening of the skin.
On the contrary, if the patient often goes out when the weather is too hot and does not do a good job of sun protection, the skin is exposed to sunlight, which may activate the body’s melanin cells, which will gather to form subcutaneous hyperpigmentation, causing skin darkening symptoms.
It is recommended that in the summer, you should do a good job of sunscreen, when you go out you can apply sunscreen or by way of a sunshade, so as to prevent ultraviolet radiation caused by skin darkening.