Intrahepatic bile duct stone is very small is a type of cholelithiasis, mostly caused by obesity, biliary tract infection, etc. It can be treated conservatively, medically, or surgically under the guidance of a doctor. 1. Conservative treatment: If the patient has no obvious symptoms and liver function is not abnormal, then no special treatment is needed, and regular review can be done. 2. Drug treatment: If the patient has pain, non-steroidal anti-inflammatory drugs, such as diclofenac sodium delayed-release tablets, indomethacin enteric-coated tablets, etc., can be used under the guidance of the doctor, and anti-infective treatments, such as cefuroxime, moxifloxacin and so on can be carried out. 3. Surgery: Patients with symptomatic cholelithiasis should undergo surgery as soon as possible, and common surgical treatments include choledochotomy and partial hepatectomy. 4. Daily life: patients should pay attention to the amount of meals in daily life, avoid overeating, avoid eating some cold, spicy and other stimulating food, to reduce psychological pressure, avoid staying up late, drink more water. Specific treatment methods need to go to the hospital to confirm the diagnosis, under the guidance of the doctor to choose according to their own situation, the patient should be regularly to the hospital for review, the doctor can adjust the treatment program according to the review of the situation.