The stomach pain during the day and not at night may be caused by digestive diseases, urinary stones, gynecological inflammation and other diseases. 1. Digestive tract diseases: stomach pain during the day and no pain at night may be caused by gastritis, gastric ulcer, pancreatitis, enteritis and other digestive tract diseases. In addition to pain, there may be nausea, vomiting, diarrhea, constipation and other symptoms. Further examination of gastroscopy, colonoscopy, abdominal ultrasound or CT is needed to find the cause. 2. Urinary stones: stomach pain during the day and no pain at night, may also be caused by kidney stones, ureteral stones and other urinary stones, may be too much activity during the day led to the stone Canton. There may also be blood in the urine, oliguria and other symptoms. You can further check the abdominal X-ray, ultrasound and other items to find the cause. 3. Gynecological diseases: If stomach pain during the day and no pain at night occurs in women, it may be caused by gynecological diseases such as pelvic inflammatory disease and vaginitis. There may also be abnormal leukorrhea, itching and other symptoms. You can further check vaginal secretions, gynecological ultrasound and other items to find the cause. It is recommended that patients whose stomach hurts during the day and not at night should seek medical attention in time and choose the appropriate treatment under the guidance of the doctor.