Swollen anus: Causes, symptoms, diagnosis, and treatments

anal swelling can occur for a variety of reasons. Most causes of a well up anus are impermanent and harmless, but some require medical attention. The anus is at the end of the rectum, and muscle surrounds it. Depending on the induce of the swell, people may have extra symptoms, such as pain, itch, burning, or bleeding around the anus. In this article, we discuss the possible causes of a swell anus and explain how doctors diagnose and treat these conditions.

Anal fissure

a man sat on the toilet with a swollen anus. plowshare on PinterestAnal swelling may make bowel movements painful. An anal crack is a small rip or tear that occurs in the lining of the anus. damage to the line of the anus or overstretching it, possibly during a intestine movement, can cause an anal crack. An anal crevice is most coarse when a person has either a dry, hard intestine movement or frequent, unleash fecal matter. Less normally, an infection or tumor can cause an anal crevice. early symptoms of an anal crevice admit :

  • pain accompanying bowel movements
  • bright red blood with a bowel movement
  • a small lump near the anal fissure

Perianal abscess

A perianal abscess is a collection of fluid that gathers in the glands near the anus. In most cases, the abscess arises as a solution of an infection. A person might notice fluid or drain coming from a perianal abscess. early symptoms include fever, pain, and problems urinating.


Hemorrhoids are a common cause of anal intumescence. Hemorrhoids are swell veins that occur in the anus and lower rectum. They can be external, appearing around the skin of the anus, or inner, which means that they arise in the liner of the anus or rectum. Hemorrhoids are more common in older people and those who eat low character diets, form during intestine movements, and have chronic stultification. They are besides more probable to occur during pregnancy. other symptoms include :

  • anal itching
  • rectal bleeding
  • pain
  • a palpable lump near the anus


Anusitis is a disorder that involves ignition of the anal duct. People frequently mistake anusitis for hemorrhoids. Inflammatory intestine disease, infections, and chronic diarrhea can cause anusitis. however, the most coarse causal agent is a diet that contains a lot of acidic or hot foods, such as coffee bean, citrus, and spices. other symptoms of anusitis include :

  • bleeding with a bowel movement
  • pain with a bowel movement
  • anal itching

Anal fistula

An anal fistula is a large tear or burrow that develops under the skin and connects the end of the intestine to either the anus or an abscess. According to the american Society of Colon and Rectal Surgeons, an anal fistulous withers will occur in about 50 % of people with an abscess. People with an anal fistula might experience :

  • pain
  • fluid drainage from the skin
  • rectal bleeding

Perianal Crohn’s disease

plowshare on PinterestA person with perianal Crohn’s may experience fever, perianal swelling, or fecal incontinence. Crohn ’ s disease is a type of incendiary intestine disease that causes inflammation anywhere in the gastrointestinal nerve pathway, including the anus.

Perianal Crohn ’ s disease signifies more severe disease, and it can be challenging to manage. Symptoms include :

  • perianal swelling
  • fever
  • fecal incontinence
  • drainage from the anus, vagina, or scrotum

Anal cancer

Anal symptoms can sometimes be ascribable to anal cancer, although this disease is quite rare. anal cancer is less common than colon cancer or rectal cancer. The american Cancer Society estimate that there will be approximately 8,300 new cases of anal cancer in 2019 in the United States. The symptoms can be exchangeable to those of other anal disorders and include :

  • anal bleeding
  • anal itching
  • pain
  • a feeling of fullness in the rectal area
  • abnormal discharge
  • changes in bowel movements

Anal sex

friction from sexual activity involving the anus can irritate the sensitive tissues around it, causing swelling, belittled tears, or bleeding. Anal sex is largely safe, but because there is a risk of bacterial infections, people should consider the risks. Learn about how to practice anal sex safely here.


A sophisticate will typically begin the diagnostic judgment by taking a thorough aesculapian history and carrying out a physical interrogation. sometimes, a doctor can diagnose an anal disorderliness upon ocular inspection or with a digital examination, which involves inserting a gloved finger into the anal canal. however, they will investigate inner problems using other tests, which might include :

  • Anoscopy. An anoscope is a lighted tube that a doctor uses to examine the lower rectum and anal lining.
  • Flexible sigmoidoscopy. A doctor will perform flexible sigmoidoscopy using a flexible tube with a light and camera on the end to look inside the rectum and lower colon.
  • Colonoscopy. A colonoscopy also involves a long, flexible tube with a light and camera. This tube is called a colonoscope, and doctors use it to view the rectum and large intestine, usually to screen for colorectal cancer.


The underlie lawsuit of a swell anus will determine the treatment .

Anal fissure

At-home treatment options for an anal fissure include :

  • having warm baths or sitz baths, especially after a bowel movement
  • adopting a high fiber diet or taking fiber supplements
  • using stool softeners
  • drinking more water
  • applying topical medications to relieve pain

Chronic anal fissures might require surgical repair. sometimes, injections of botulinus toxin ( Botox ) into the anal sphincter help heal chronic anal fissures .

Perianal abscess

perianal abscesses much require surgical drain, particularly in people with attenuate immune systems and those with diabetes. After surgical drain, the scent can take 3–4 weeks to heal .


share on PinterestA warm bath several times per day may help to treat hemorrhoids. Treatments for hemorrhoids include :

  • a high fiber diet
  • stool softeners or fiber supplements
  • drinking more water
  • warm baths or sitz baths several times per day
  • not straining during a bowel movement and avoiding sitting on the toilet for too long

Prolapsed or internal hemorrhoids may require checkup treatment, including laser procedures or operation .


The type of treatment for anusitis will depend on the underlie campaign. If the campaign is inflammatory intestine disease or an infection, a person will need medical treatment. other treatments include :

  • diet changes, including eating more high fiber foods
  • stress management
  • applying ice or cold packs

Anal fistula

surgery is about always necessary to treat an anal fistulous withers .

Perianal Crohn’s disease

The treatment of perianal Crohn ’ second disease is often multifactorial and may include :

  • antibiotics
  • immunosuppression drugs
  • biologic drugs
  • surgery

Anal cancer

When deciding how to treat anal cancer, doctors will consider several factors, including the type of tumor and how army for the liberation of rwanda it has spread into the body. They will besides take into account a person ’ south old age and overall health. A treatment design for anal cancer might consist of a combination of chemotherapy, radiation, and surgery .


A swell anus may be very uncomfortable, but in most cases, the causes are impermanent and pose no retentive term risk.

home remedies for anal swelling include warm baths, a high fiber diet, hydration, and topical medications. A person should contact their doctor if they experience persistent symptoms, such as pain, bleed, or changes in intestine habits .

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