disease has location disease has feature anal spasm syndromic disease anus disorder levator syndrome https://rarediseases.info.nih.gov/diseases/6899/levator-syndrome MESH:C535890 Levator syndrome is characterized by sporadic pain in the rectum caused by spasm of a muscle near the anus (the levator ani muscle). The muscle spasm causes pain that typically is not related to defecation. The pain usually lasts less than 20 minutes. Pain may be brief and intense or a vague ache high in the rectum. It may occur spontaneously or with sitting and can waken a person from sleep. The pain may feel as if it would be relieved by the passage of gas or a bowel movement. In severe cases, the pain can persist for many hours and can recur frequently. A person may have undergone various unsuccessful rectal operations to relieve these symptoms. levator ani spasm syndrome icd11.foundation:1042451642 levator ani syndrome paroxysmal proctalgia NCIT:C113615 SCTID:62647006 anorectal spasm MEDGEN:98071 painful spasm of anus UMLS:C0423738 MONDO:0023628 levator syndrome proctalgia fugax psychogenic anal spasm levator ani muscle