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Reasons for Burning Sensation or Swelling in the Anus

Some people may notice Know the common and less common causes of burning sensation in the anus in this blog.

Reasons for Burning Sensation or Swelling in the Anus

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10 Reasons for Burning Sensation in the Anus 

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1. Anal fissure

Tiny cuts or cracks in the tender skin of the anus is known as anal fissure. The fissure can be a reason for burning sensation or pain in the anal area. There can also be bleeding sometimes, mostly while passing stool. (Also Read: Causes of Anal Fissure )

Symptoms of Anal Fissure:

  • Cuts or cracks on the anal skin
  • Outgrowth of anal skin around the tear
  • Burning sensation or severe pain near the anus, especially while passing stool.
  • Blood in the stool or on the toilet paper after wiping
  • Itchiness in the anal area

2. Piles 

Swelling or inflammation of the veins of the anal area is known as hemorrhoids or piles. This is a very common condition and is found in 3 out of 5 individuals. 

Symptoms of Piles include:

  • Pain when passing stool
  • Severe ( even constant )  anal itching, discomfort, and pain
  • Lumps that can be felt near the anus. Lumps are often itchy and can even hurt.
  • Pus discharge from the anus
  • Blood in the stool or on the toilet paper after wiping

Also Read: Difference Between Piles and Fissure

3. Constipation 

Constipation is the condition when the person poops less than three times a week. The person then also does a hard poop which gives pain and a lot of trouble while on the toilet seat. 

Common symptoms of Constipation include:

  • Hard, dry stool 
  • Pain in the anal area while pooping
  • Frequent and constant urge to poop
  • Bloating or cramping in the abdomen area

4. Proctitis 

This condition occurs when the lining of the rectum becomes inflamed. 

Symptoms of proctitis include:

  • Pain when passing stool
  • Constant diarrhea
  • Blood when passing stool
  • Mucus or pus-like discharge from the anus
  • Frequent urge to poop

5. IBD 

Inflammatory bowel disease or IBD is the condition that leads to inflammation in the digestive tract. This inflammation can also be seen in cases of Crohn’s disease, Ulcerative Colitis, and Irritable Bowel Syndrome.  (Also Read: IBS vs. IBD- Know The Difference )

Common symptoms of IBD include:

  • Diarrhea
  • Feeling exhausted or tired all the time
  • Pain or discomfort in the belly
  • Blood in stool
  • Unexplained or sudden weight loss

6. Diarrhea 

During diarrhea, the patient has bowel movements are thin and watery.

Diarrhea doesn’t always cause burning in the anus. But, people who wipe their anal area excessively and pass a lot of stool can have irritated skin which can make the anus feel sore and have a burning sensation.

Symptoms of diarrhea include:

  • Nausea
  • Cramps
  • Bloating
  • Blood in the stool
  • Feeling the need to pass stool  often
  • Fever

7. Endometriosis

Endometriosis is the condition when the tissues lining the inner side of the uterus begin to grow outside the uterus. The overgrowth can attach to the colon and cause pain and irritation.

Other symptoms of Endometriosis include:

  • Burning sensation or pain in the anal area
  • Pain during periods
  • Lower abdominal or cramps before the periods start
  • Heavy period flow
  • Pain during sex
  • Infertility

8. Chlamydia or Syphilis 

Sexually Transmitted Infections such as chlamydia and syphilis can spread through anal intercourse and can result in bacterial infections which can cause the rectum to swell and cause pain while pooping.

Sexually Transmitted Infections (STIs) spread through unprotected sexual contact with a person who is already infected. 

Other symptoms of Chlamydia or Syphilis include:

  • Pain in the butt area
  • Rectal swelling 
  • Burning when you pee
  • Discharge from the genitals
  • Pain during sex.

9. Human Papilloma Virus (HPV) 

A person suffering from (Human Papilloma Virus) HPV often has pain or burning sensations in the anal area. If left untreated, HPV can cause anal and cervical cancer. Although, it cannot be fully cured. Make sure to get tested regularly for STIs and Cancer regularly if you have been diagnosed with HPV.

10. Anal or Rectal Cancer 

Common symptoms of anal or rectal cancer are swelling, pain, irritation or burning sensation in the anal area. Anal or rectal cancer does not always cause pain while pooping in most cases, but in some, it can be a reason.  (Also Read: Can Piles Lead to Cancer? )

Some other symptoms of anal or rectal cancer include:

  • Sudden changes in poop 
  • Small, thin stool
  • Blood discharge in the poop or on the toilet paper 
  • Painful lumps near the anus 
  • Itching around the anus
  • Unusual anal discharge
  • Regular constipation or diarrhea
  • Constantly feeling exhausted
  • A lot of gas or bloating
  • Constant pain or cramps in the lower abdomen

7 Reasons for Swelling in the Anus 

Man having swelling around anal area having pain

1. Anusitis

Anusitis is a common anorectal disorder that involves inflammation of the anal lining. The condition is similar to hemorrhoids and can be misdiagnosed as hemorrhoids. 

Symptoms of Anusitis include:

  •  Pain 
  •  A wet or bloody discharge
  • Swelling or soreness in the anal area

2.External hemorrhoids

External hemorrhoids is a type of piles in which the lump remains permanently outside. They can be painful and discomforting. There is also anal swelling due to swollen blood vessels of the anus. It is a common condition, affecting 3 out of 4 adults. 

3. Anal fissure

Anal fissure is another common anorectal disorder that leads to small cuts or tears in the skin of the anal opening. The condition causes pain or swelling in the anal area, pain while passing a bowel, bleeding and also, there can be a lump near the anal opening.

4. Anal abscess

Anal abscess is a result of a clogged and infected gland in the anus. The infection and clogging can produce anal abscess, which can technically be defined as accumulation of pus around swollen anal tissue. Conditions like colitis, can increase the risk of developing anal abscess.

The condition can cause pain, swelling or burning sensation in the anal area, lump near the anus and fever. 

5. Anal fistula

The condition occurs when the tunnel that connects the of the anus and the anal opening becomes infected.  As per the Swedish Medical Center, half of the patients suffering from anal abscess or with a history of it will develop anal fistula at some point. Symptoms of anal fistula include swelling or soreness in the anal area, irritation or burning sensation, discomfort or pain,  itching and stool leakage. 

6. “Perianal” Crohn’s disease

Crohn’s disease is a condition that leads to chronic inflammation of the digestive tract. In most cases, the disease affects the small intestine, but it can also affect the entire digestive tract and also the anus. If reached till the anus, the disease can cause pain, swelling, itching, redness or irritation in the anal area. 

7. Anal Sex 

Anal sex can cause anal swelling.  Rough anal intercourse can irritate the area and cause swelling, redness or burning sensations. 

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Notice any Symptoms? Visit a doctor 

With most patients, anal swelling is very uncomfortable. It may not be that dangerous but it can hinder the normal activities of the person and causing discomfort. If you notice any of the above-mentioned symptoms, dial Pristyn Care’s number and get an appointment to meet our doctors. After proper diagnosis, the doctor can help the patient get rid of anal swelling and hit the road to recovery.

Also Read: Ailment of the Anus


Yes, when you clean your anal region after bowel movement, you may tend to rub toilet paper aggressively. This hurts the perineal skin leading to burning and irritation. Dab the area or gently wipe it from front to back when you are done. That's the right way.

Antibiotics, sometimes, may cause itching and irritation which ultimately might result in burning. Aggressive rubbing or scrubbing with scented soaps may also cause anal burn.

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