Cholecystitis does not cause left shoulder pain, the gallbladder is located on the right side, can cause right shoulder pain, left shoulder pain may be caused by heart disease, frozen shoulder, cervical spondylosis and so on. The pain caused by cholecystitis is usually biliary colic, which is often caused by the obstruction of the gallbladder duct by stones. The pain is mostly in the right upper abdomen, but can also be in the upper middle abdomen. Because the gallbladder is located in the right side of the abdomen, the pain is referred, so it may radiate to the right shoulder or right back, but does not cause pain in the left shoulder. Nausea, vomiting, fever, and jaundice may also be present in cholecystitis. In heart disease, such as myocardial infarction, the pain may radiate to the left shoulder, causing left shoulder pain. Left shoulder pain may also indicate frozen shoulder, cervical spondylosis, muscle strain, rotator cuff injury, pneumonia, shoulder dislocation, humeral fracture and other diseases. Patients with symptoms of cholecystitis or left shoulder pain should go to the hospital in time and receive standardized treatment under the guidance of a doctor.