Kaz Matsui (ignore the picture, as he's with the Astros now) is taking a bit of a rest from playing over the next four or five days because of anal fissures. What's that you say?
An anal fissure is an unnatural crack or tear in the anus skin. As a fissure, these tiny tears may show as bright red rectal bleeding and cause severe periodic pain after defecation. [...] Most anal fissures are caused by stretching of the anal mucosa beyond its capability. Various causes of this fissure include:
- Straining to defecate, especially if the stool is hard and dry
- Severe and chronic constipation
- Severe and chronic diarrhea
- Crohn's disease and Ulcerative colitis
- Tight sphincter muscles
- Anal Intercourse