Waking up in the morning with stomach cramps may be caused by bad habits, gastritis, peptic ulcer, irritable bowel syndrome and other reasons. 1. Bad habits: bad habits such as having a cold abdomen the night before or eating cold and greasy food that leads to indigestion may cause intestinal cramps in the morning, resulting in the symptom of stomach cramps in the morning. 2. Gastritis: Gastritis patients have more gastric acid secretion in the morning on an empty stomach, which can easily stimulate the gastric mucosa and lead to gastric spasm, resulting in symptoms of early morning cramps. 3. Peptic ulcer: the large amount of gastric acid secreted in the stomach of patients with peptic ulcer will stimulate the ulcer surface of the stomach or duodenum, leading to gastric or duodenal stimulation and contraction, which may cause colic. 4. Irritable bowel syndrome: these patients fasting intestinal peristalsis is slow, after eating intestinal peristalsis suddenly increased, this time the intestinal tract may be stimulated to cause spasm caused by colic. If the patient’s symptoms can not be relieved in time, it is recommended that the patient consult a doctor in time to avoid serious consequences.