Drinking black coffee usually does not lead to constipation, but may indicate that there are other problems in the body. Drinking coffee usually has a large amount of caffeine, can to a certain extent to promote the body excited, will make the bowel movement faster, may make the number of bowel movements increased, generally will not lead to constipation of the body exists. Therefore, usually more frequent bowel movements, easy to diarrhea and poor sleep patients are not recommended to drink, constipation may be related to other reasons, it is recommended to pay attention to timely. If the symptoms of constipation are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, to identify the cause and then give targeted treatment.