Frequent abdominal cramps are mostly considered to be caused by cold, calcium deficiency, functional gastrointestinal disease, gastroenteritis and other reasons. 1. Cold: If you stay in a low-temperature environment for a long time or blow the air conditioner regularly, it will easily lead to strong contraction of smooth muscle, which will lead to frequent abdominal cramps. 2. Calcium deficiency: If the long time nutritional intake is not balanced, resulting in calcium deficiency, or excessive exercise leading to serious calcium loss, it is easy to have frequent abdominal cramps. 3. Functional gastrointestinal disease: due to prolonged overeating, excessive intake of spicy and stimulating food, prolonged late night, mental stress and other factors causing gastrointestinal mucosal damage and irritation, it is easy to have frequent abdominal cramps. 4. Gastroenteritis: If the diet is unhygienic, long-term contact with medicines or chemical poisons, it is easy to cause microbial infections or inhalation of toxic gases, resulting in inflammatory reaction of the gastrointestinal mucosa, which can lead to the emergence of frequent abdominal cramps. Frequent abdominal cramps may also be other causes, it is recommended to go to the hospital in time for examination and treatment.