tenesmus

A painfully urgent but ineffectual attempt to urinate or defecate.

In medicine, a continual inclination to void the contents of the bowels or bladder, accompanied by straining, but with little or no discharge.

An urgent and distressing sensation, as if a discharge from the intestines must take place, although none can be effected; — always referred to the lower extremity of the rectum.

a similar sensation as to the evacuation of urine, referred to the region of the bladder.

The painful and often ineffectual straining to relieve the bowels

a painfully urgent need to urinate or defecate that results in little being passed

painful spasm of the anal sphincter along with an urgent desire to defecate without the significant production of feces; associated with irritable bowel syndrome