Elevated diaphragm is usually caused by diseases of the organs below the diaphragm, pleural as well as pulmonary diseases, congenital developmental factors and other diseases. Abdominal ultrasound is needed to identify the cause of diaphragm elevation. 1. Lesions of organs below the diaphragm: Generally, lesions of organs below the diaphragm include diseases of the liver, gallbladder and pancreas. Usually, liver stasis, enlargement, cyst, occupation, etc. make the diaphragm elevated. Patients need to undergo ultrasound examination under the guidance of the doctor to clarify the cause of the disease. 2. Pleural and lung diseases: When the patient’s pleura has adhesion and pulling or the lung is damaged due to the cause of thoracic collapse and lung expansion incomplete, etc., it can lead to symptoms of diaphragm elevation. Thoracic surgery is usually required for treatment. 3. Congenital developmental factors: When diaphragmatic dysplasia, phrenic nerve atrophy, degenerative changes and other congenital developmental factors lead to elevated diaphragm, usually do not need special treatment. It is recommended to go to regular hospitals to clarify the cause of elevated diaphragm, so as to treat the symptoms in time and avoid delaying the condition.