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Reasons for Burning Sensation or Swelling in the Anus
A burning sensation in or around the anus can occur because of irritation, constipation, diarrhea, anal fissures, hemorrhoids, infections, or inflammation of the rectum. In many cases, the cause is minor and temporary, but persistent or severe anal burning should be evaluated by a doctor.

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Burning Sensation in the Anus: Causes, Symptoms and Treatment
The symptoms that occur along with the burning sensation—such as pain while passing stool, bleeding, itching, swelling, discharge, or changes in bowel habits—can help identify the underlying cause.
10 Common Causes of Burning Sensation in the Anus
1. Anal Fissure
An anal fissure is a small tear in the skin around the anus. It commonly causes sharp pain while passing stool followed by burning pain that may continue for some time afterward. Bright red blood on the toilet paper or stool may also occur.
Common symptoms include:
- Sharp or burning anal pain
- Pain during or after bowel movements
- Bright red blood on toilet paper or stool
- Itching or irritation around the anus
2. Hemorrhoids or Piles
Hemorrhoids (piles) are swollen veins around the anus or lower rectum. External hemorrhoids may cause itching, discomfort, pain, or a tender lump near the anus, while internal hemorrhoids commonly cause rectal bleeding.
Straining during bowel movements, constipation, diarrhea, prolonged sitting on the toilet, and a low-fiber diet can increase the risk of hemorrhoids.
Also Read: Difference Between Piles and Fissure
3. Constipation
Passing hard or dry stools can irritate the anal skin and cause burning or pain. Straining during bowel movements can also contribute to anal fissures and hemorrhoids.
Common symptoms of constipation include:
- Hard or dry stools
- Difficulty passing stool
- Straining during bowel movements
- A feeling of incomplete bowel emptying
- Bloating or abdominal discomfort
4. Diarrhea and Skin Irritation
Frequent loose stools can irritate the sensitive skin around the anus. Repeated wiping or cleaning can further worsen the irritation and cause burning, soreness, or itching.
Keeping the area clean and dry and avoiding excessive rubbing can help reduce irritation. Persistent diarrhea should be evaluated to identify its underlying cause.
5. Proctitis
Proctitis is inflammation of the lining of the rectum. It can cause anal or rectal pain, burning, an urgent or frequent need to pass stool, diarrhea or constipation, and blood, mucus, or pus in the stool. Causes include inflammatory bowel disease, infections, certain sexually transmitted infections, radiation treatment, and other conditions.
6. Anal Abscess
An anal abscess is a painful collection of pus caused by an infection near the anus. It c
FAQs around PCOS/PCOD
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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