Cholecystitis is usually caused by obstruction of the gallbladder duct or obstruction of the common bile duct due to obstruction of the gallbladder duct, bacterial infection and gallbladder stones, etc. It is mainly categorized into chronic cholecystitis and acute cholecystitis. 1. Acute cholecystitis: refers to the acute inflammation that occurs in the gallbladder, and the common causes are obstruction of the gallbladder duct and bacterial infection. If it is obstruction of the gallbladder duct, it can be cured by surgery; if it is caused by bacterial infection, it needs anti-infection treatment. 2. Chronic cholecystitis: it is a chronic inflammation of the gallbladder that persists over and over again, usually caused by long-term gallbladder stones, some patients are asymptomatic, some patients only show epigastric discomfort, or acute attacks. If the gallbladder stones are large and recurring for a long time, it can be treated by surgery; if you choose conservative treatment, it is recommended to eat a light diet, regular meals, and you can take ursodeoxycholic acid orally to dissolve the stones. During the acute attack of acute cholecystitis, do not take painkillers without authorization, leading to delay or cover up the condition, you should go to the hospital in a timely manner, under the guidance of the doctor for targeted treatment.