There is a long list of conditions that can cause persistent pain in the anal region. This discussion will focus on the most common of these - which are hemorrhoids, peri-anal abscesses/fistulas and anal fissures.
Hemorrhoids
Also known as “piles”, hemorrhoids occur when the blood vessels under the lining of the anal canal swell and bulge out. Initially the bulge is small and located within the anal canal but in time, the bulging piles protrude out of the anus. Swollen piles can bleed, sometimes quite profusely. Pain occurs when the swelling is severe or the blood vessels inside the piles become clotted up (thrombosed).
Hemorrhoids are very common, and it is estimated that about half of the population will develop hemorrhoids. Many patients suffer in silence for long periods before seeking treatment.
The exact cause of hemorrhoids is unknown. Excessive straining during bowel movements and chronic constipation are well known to be associated with piles. Sitting for prolong periods, especially reading, on the toilet, is another factor. Pregnant women frequently develop large piles during the later stages, especially around the time of delivery.
Small piles can be treated with medications and creams combined with relieving constipation and improving bowel habits. Increasing fluids and fiber in the diet also help.
More severe cases require some form of surgical treatment. This can range from simple rubber band ligation to formal surgery (hemorrhoidectomy) depending on the severity of the swelling.
Hemorrhoidectomy, or the surgical removal of piles, is a relatively minor operation. It takes about 15 to 30 minutes, and can be done with just one day’s stay in hospital. The main risk is bleeding after the operation, which is not common. Pain from the wound is variable and easily controlled with analgesic tablets. Although some discomfort during bowel movements may be present initially, evacuation of bowels is not affected usually. Most patients are ambulant immediately and are able to return to full normal activities in about 1 to 2 weeks.