Abdominal cramps after waking up consider the following reasons: First, consider the cold caused by sleeping at night, intestinal spasms occurring under the influence of environmental factors, intestinal spasms appear part of the intestinal ischemia, so the cramps occur. Second, consider acute gastroenteritis, mainly due to eating unclean food or food with toxic side effects before going to bed. Third, consider parasitic infection, when the parasite stimulates the intestine will appear colic. Fourth, consider the gastrointestinal perforation caused by other diseases, is a more serious disease, mostly due to ulcer induced. Fifth, it is considered to have intestinal obstruction and stool obstruction, which may induce colic or distension. Sixth, consider intestinal adhesions or intestinal torsion, which can cause more intense pain. Seventh, consider having intestinal tumor or abdominal tumor.