painful spasm of the anal sphincter along with an urgent desire to defecate without the significant production of feces; associated with irritable bowel syndrome
造句
用作名詞(n.)
The pain had become constant in the last two months and was associated with diarrhea and tenesmus. 近二個月有持續疼痛的情形，且合并腹瀉及裹急后重。