Color of stool with blood in it may range from black, red, maroon, green yellow, gray, or white, and may be tarry, or sticky. It is thought that the high resting pressure and the “overshoot” contraction of the internal anal sphincter following a bowel movement pull the edges of the fissure apart and prevent the fissure from healing. Relaxing the muscle allows the anal fissure to heal. ) relaxes (actually paralyzes) muscles by preventing the release of acetylcholine from the nerves that normally causes muscle cells to contract.
For medical professionals
Skin fissures around anus. The injections will prevent spasms in your anus by temporarily paralyzing the muscle. Treatment of blood in the stool depends on the cause. If the fissure is hard and irregular, suggesting anal. A careful history usually suggests that an anal fissure is present, and gentle inspection of the anus can confirm the presence of a fissure.
Thus, the expense for a single injection of toxin is high. If gentle eversion (pulling apart) the edges of the anus by separating the buttocks does not reveal a fissure, a more vigorous examination following the application of a topical anesthetic to the anus and anal canal may be necessary. To confirm the diagnosis.