Coffee spots are light brown spots that can be found at birth, ranging in color from light brown to dark brown, but the color of each piece is the same and very uniform. There are many kinds and colors of pigment spots: brown pigment spots, melanin spots and so on.
2, shape difference:
Coffee spots vary in size from several millimeters to tens of centimeters, with clear boundaries and completely normal skin texture. Pigment spots vary in size, round, oval or irregular in shape.
3. Time difference:
Coffee spots can appear at birth or later, and increase in number throughout childhood. It is more common in the trunk and will not decline on its own. Pigmented spots generally appear for acquired reasons, such as physiological chloasma, pathological chloasma and sunburn.
Extended data:
Causes of color stains:
1, excessive pressure: this is an important reason for the formation of pigmentation. When people have stress, the balance of metabolism will be destroyed, the supply of nutrients needed by the skin will tend to be slow, and the pigment mother cells will become very active, which will form pigmentation.
2, endocrine disorders: endocrine disorders are a common cause of skin pigmentation, women should pay attention to endocrine disorders, endocrine disorders will affect the metabolic function of the skin, easily lead to the accumulation of harmful substances, which will affect the healthy endocrine disorders of the skin, women should pay attention to a reasonable diet as soon as possible.
3. Slow metabolism: The slow metabolism of the human body is the main cause of skin spots. Slow metabolism will lead to the abnormal metabolism of melanin in women's skin, which will easily lead to the deposition of melanin in the skin, which will lead to skin spots. Usually, exercise more and develop the habit of drinking water frequently, which can speed up human metabolism.
Baidu encyclopedia-coffee spot
Baidu encyclopedia-pigment spot