Bilirubin can be slightly elevated by staying up late for long periods of time. Bilirubin is elevated at different levels depending on the individual circumstances of each person. In addition, it should be noted that other diseases can also increase bilirubin, and it is recommended that people go to a regular hospital for diagnosis, to identify the cause of the disease, and to treat the cause of the disease. Staying up late for a long time will affect the function of the liver and cause some damage to the liver, which will lead to a slight increase in bilirubin, the exact amount of increase varies from person to person. In addition, staying up late for a long period of time will also increase the prevalence of digestive diseases (such as gallbladder polyps, gallstones, etc.), which will increase bilirubin. When people find that bilirubin is elevated, they should first find out the cause of the disease and treat the cause. In daily life, people should avoid staying up late, drinking alcohol and other bad habits.