What is an anal fissure?

Anal fissures are caused by trauma or injury to the anal canal. This can be through trying to pass large poops or particularly vigorous anal sex. The fissure can cause bleeds, especially when you poop. It’s very uncomfortable. Fissures can usually heal on their own, however, if a fissure lasts longer than six weeks, medicine or surgery may be needed. However, it’s been discovered that injecting botulinum toxin type A (Botox) directly into the sphincter will paralyse it temporarily, which will reduce pain and encourage healing.

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