Continuous hiccups may be related to digestive system diseases, respiratory system diseases, brain diseases, etc., and need further differential diagnosis by doctors. 1. Digestive system diseases: gastritis, gastric cancer, subphrenic abscess, etc. can cause increased intra-abdominal pressure, which can cause continuous hiccups. 2. Respiratory diseases: pneumonia and diaphragmatic pleurisy, diaphragmatic hernia and other reasons can stimulate the diaphragm to cause continuous hiccups. 3. Brain diseases: brain tumor, hydrocephalus, meningitis, etc. can cause continuous hiccups when the medulla oblongata is affected. It is recommended to go to regular hospitals for timely consultation to clarify the cause of hiccups and standardize the treatment under the doctor’s guidance, so as to avoid delaying the condition and bringing adverse effects to the body.