What is the cause of skin sallow sallow

Causes of skin yellowing are more, divided into physiological and pathological reasons: first, the influence of skin color is genetic, simple to say that some people are born with yellow skin, this is related to genetic genes. Second, a physiological skin yellowing, such as some people for a long time diet to lose weight, partial eclipse, the body did not intake enough nutrients, resulting in poor skin condition yellowing. There are also people who stay up late for a long time constipation, lack of sleep, will also cause yellow skin and dull light.Third, the skin is not repaired in time after damage, for example, some people do not timely treatment and repair after sunburn caused by yellow skin.Fourth, pathological reasons, if the whole body of the skin are showing yellow dye, even including sclera yellow, this may be jaundice. jaundice is caused by bilirubin metabolism disorder, generally seen in patients with chronic liver disease and liver cancer.