Whether or not oil in the stool can be cured by itself is related to its cause. If the oil in the stool is caused by improper diet, it can be cured after improving the diet. If it is caused by bile duct obstruction, chronic pancreatitis and other diseases that lead to oil in the stool, it usually can not be cured by itself and needs to be treated according to the cause. 1. Improper diet: If you eat too much greasy, high-fat food, resulting in high fat content in the body, you may have oil in the stool. After adjusting the diet, it can usually be cured by itself. 2. Biliary obstruction: If viral hepatitis, intrahepatic bile duct stones and other diseases lead to biliary obstruction, the patient will not be able to hydrolyze fat due to the accumulation of bile, which will lead to the situation of having oil in the stool. At this time need to be treated according to the cause of the disease. 3. Chronic pancreatitis: It is a chronic progressive inflammation of the pancreas due to various reasons. Patients may have persistent abdominal pain, weight loss, jaundice and other symptoms, and may also have oil in the stool. At this time, according to the cause of pancreatic enzyme preparations, octreotide and other medications, if necessary, surgical treatment. 4. Endocrine system diseases: such as hypothyroidism, hypoadrenocorticism and other diseases, due to fat metabolism disorders, patients may have symptoms of oil in stool. At this time, the cause of the disease should be treated with thyroid hormones and glucocorticoids. There are many other causes of oil in the stool, it is recommended to consult a doctor in a timely manner to clarify the cause of the disease and then carry out targeted treatment to avoid adverse effects.