Other symptoms may include: An anal fissure is a small split or tear in the thin moist tissue mucosa lining the lower rectum anus. Most people will fully heal within two to four weeks. Surgical conditions of anus and rectum. Adults with an anal fissure will usually be prescribed bulk-forming laxative tablets or granules. As with GTN ointment, you'll usually have to use calcium channel blockers for at least six weeks, or until your fissure has completely healed.
An anal fissure is a common and painful condition where a tear or ulcer develops in the anal canal, that's between the rectum and anal opening. Anal fissure (fissures) is a very painful condition caused by trauma to the anus and anal canal, which then cuts or tears the anus and anal canal tissue. These tears. An anal fissure is a small tear in the skin overlying the anus that may occur when a hard stool is passed. Constipation is the most common cause of anal fissures.