Diarrhea without abdominal pain may be related to the presence of intestinal diseases or systemic diseases, it is recommended to consult a doctor in time to clarify the cause of the disease. 1. Intestinal diseases: Usually when there are mild intestinal diseases, diarrhea without abdominal pain may occur, mainly due to intestinal viral infections, dyspepsia, gastrointestinal tract dysfunction, and intestinal flora imbalance caused by gastritis, gastric ulcer and so on. 2. Systemic diseases: If there are symptoms of hyperthyroidism, the body’s basic metabolism may increase, which in turn causes gastrointestinal peristalsis to accelerate, diarrhea, loose stools, etc., but will not be accompanied by abdominal pain. Diarrhea without abdominal pain may also have other causes, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.