Sympathectomy works to treat conditions such as hand sweating, Raynaud’s syndrome, and intractable upper abdominal pain. 1. Hand sweating is caused by sympathetic nerve excitation. Patients may experience excessive hand sweating in stressful or overheated environments. At this time, patients can be treated with sympathectomy under thoracoscopy, which can effectively improve the symptoms of hand sweating. 2. Patients with Raynaud’s syndrome have sympathetic nerve dysfunction that innervates the peripheral blood vessels, causing spasm of small arteries in the extremities. When the patient is agitated or in cold weather, the skin will be pale or flushed, and the fingers will be painful. For patients with Raynaud’s syndrome, sympathectomy can be taken in time to slow down the development of the disease. 3. Patients with pancreatitis may have persistent epigastric pain in the late stage, and timely sympathectomy can effectively relieve epigastric pain. Sympathectomy is more effective in treating lesions caused by sympathetic nerve disorders, and patients need to choose sympathectomy under the guidance of a doctor.