What could be the reason for having diarrhea without stomach pain?

Diarrhea without abdominal pain may have several possible causes: 1. Non-pathological diarrhea: This may result from improper diet, such as consuming excessive greasy, spicy, or raw/cold foods, or from transient factors like exposure to cold or mental stress. This type of diarrhea typically does not involve abdominal pain. 2. Functional diarrhea: Functional diarrhea refers to persistent or recurrent episodes of diarrhea without symptoms such as abdominal pain or bloating. It may be related to gastrointestinal dysfunction or intestinal flora imbalance. 3. Mild diarrhea due to underlying conditions: Certain intestinal disorders, such as chronic enteritis or intestinal tumors, may present with diarrhea alone when the condition is mild, without significant abdominal pain. 4. Other diseases: Painless diarrhea may also be associated with other conditions, including intestinal infections (such as viral, bacterial, or parasitic infections), intestinal tuberculosis, or hyperthyroidism.