Very black around the anus belongs to the normal phenomenon of the human body, does not indicate that the human body somewhere function may have abnormalities, in fact, is not need to worry about the normal phenomenon, for people of color, the accumulation of pigment, precipitation makes the skin around the anus is very dark, this is a normal physiological phenomenon, different people’s pigment accumulation degree is not the same, but very dark situation will not jeopardize the body’s health. Usually also need to pay attention to personal hygiene, you can choose care solution for cleaning, pay attention to the health of the anus and its surrounding skin every day, pay attention to keep dry and clean, may be a period of time after the accumulation of pigmentation, precipitation will be reduced, can also be operated by laser whitening, usually eat more vitamin-rich foods, such as lemon, honey and so on.