Cholesterol 54mmol/L is considered high, and the normal is usually 2.9-6.0mmol/L. High cholesterol is mostly caused by improper diet, hereditary factors, obstructive jaundice and other reasons. After eating a large amount of food containing high cholesterol, such as animal offal, the body will take in too much cholesterol, thus causing high cholesterol. If there is a family history of high cholesterol, the offspring will also have the possibility of high cholesterol. Obstructive jaundice is one of the causes of high cholesterol, mainly due to the obstruction of bile excretion, while the blood contains lipoprotein-X, intrahepatic cholesterol synthesis is hyper-induced, free cholesterol will be increased, and therefore high cholesterol will occur. Cholesterol in ordinary life should pay attention to their own diet, as little as possible to consume animal offal, fats and oils, pay attention to the amount of sugar intake, eat less whole milk, chocolate, cream, etc., prohibit the consumption of fatty meat, sausage, pig’s trotters and other meats, and consume more vegetables and fruits. If the situation is serious, it is recommended to go to the hospital for consultation.