The incidence of liver cancer in fatty liver is small and may develop into liver cancer in about 10-15 years at the earliest. Fatty liver needs to go through three steps to develop into liver cancer. Fatty liver first develops into steatohepatitis, and inflammation will stimulate the proliferation of fibrous tissue in the liver and form cirrhosis. If cirrhosis is not controlled in time, it may lead to a decrease in the immune function of the body’s immune system, which cannot remove cancerous cells in time and increase the risk of liver cancer. Usually, fatty liver is reversible and can be cured through active and effective medication and lifestyle adjustment. Only a few patients may develop liver cancer, and the time required for cancer is usually more than 10-15 years. Patients with fatty liver must adhere to exercise, choose suitable sports such as jogging, playing table tennis and badminton to enhance fat consumption in the body, eat a reasonable diet, reduce fat intake and have regular liver function tests in liver disease departments of hospitals to prevent the occurrence of liver cancer.