The yellowing of the hands can not be judged as a problem in some parts of the body, it may be physiological reasons such as excessive intake of carotene, or pathological reasons such as liver and gallbladder diseases, endocrine diseases and so on. 1. Physiological reasons: if the intake of food containing more carotene, such as carrots, oranges, etc., can lead to yellowing of the hands, and the symptoms can be subsided after resuming a normal diet; in addition, the hands of patients who have been smoking for a long time can also be yellow. 2. Pathological reasons: patients with liver and gallbladder diseases and anemia patients due to abnormally high bilirubin metabolism, can also lead to yellowing of the skin on the hands. There are many reasons for yellowing of the hands, but only from the yellowing of the hands of this symptom, it is difficult to determine which part of the body problems, it is recommended to go to the hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor for active treatment.