What is pain in the anus?

If there is pain inside the anus, there are many causes. The most common one is the pain caused by anal fissure. We know that for patients with anal fissure, defecation is the most likely to cause pain. In addition, there is anal sinusitis, which is also a relatively common anorectal disease. Some hemorrhoids are also important causes of such pain, such as thrombosed external hemorrhoids, incarcerated internal hemorrhoids, etc.

What is pain in the anus?

(1) Pain caused by anal fissure

It is cyclical and often occurs during or after defecation. It is mainly caused by irritation from feces and expansion of the ulcer fissure. The pain is paroxysmal burning or knife-like pain that can last for several minutes. The pain will subside after the stool passes. In addition, due to the stimulation of defecation, the internal sphincter may be in continuous spasm, causing severe and persistent pain in the ulcer fissure; it can often last for several hours, and the patient is restless and in great pain; in severe cases, the pain can last for more than 24 hours. In addition to pain, anal fissures are often accompanied by symptoms such as bleeding and constipation.

(2) Anal sinusitis

Generally, there is slight pain and heaviness in the anus. During defecation, the stool presses on the inflamed anal sinus, causing burning pain in the anus. If the sphincter contracts due to stimulation, the pain will intensify and radiate to the buttocks and posterior thigh. It is often accompanied by a small amount of purulent or mucous secretion with a foul odor, which may cause moisture, itching and other discomforts around the anus over time.

(3) Thrombosed external hemorrhoids

In mild cases, there is a foreign body sensation, often accompanied by bloating and pain. Due to damage to the perianal veins, blood clots form thrombi, and purple round hard nodules appear under the outer skin of the anus, usually at 3 o'clock and 9 o'clock in the lithotomy position.

(4) Internal hemorrhoids

The main symptoms are distension and burning pain, which is mostly caused by varicose veins, damaged blood vessels and thrombosis, which lead to restricted tissue circulation and prolapse outside the anus.

These diseases will more easily cause swelling and pain in our anus. The editor recommends that you should pay attention to eating more fresh fruits and vegetables, and maintain good habits in your daily life. This will be more helpful in relieving anal discomfort.