Anal fissure symptoms, causes, and treatment at Westin Hospitals

An anal fissure is a small tear in the lining of the anus, usually caused by hard stools, constipation, or straining during bowel movements. It causes sharp pain during and after passing stool, along with bright-red bleeding. Recent fissures often heal with stool-softening measures and lifestyle changes within a few weeks; fissures that persist beyond six weeks or keep recurring may need medicine or, in select cases, surgery.

An anal fissure can start with something as ordinary as a hard bowel movement, and the pain that follows is often disproportionate to how small the tear actually is. Research suggests roughly 1 in 10 people experience an anal fissure at some point in their life, yet it's rarely talked about, partly because the symptoms so closely mirror piles. Knowing the difference matters, because the two conditions aren't treated the same way.

What Is an Anal Fissure?

An anal fissure is a small tear in the thin tissue lining the anal canal. The tear triggers pain and causes the anal muscles to tighten involuntarily, and that muscle spasm can reduce blood flow to the area, which is exactly what makes healing harder and the cycle of pain repeat itself with every bowel movement.

If you're dealing with persistent bowel-related symptoms, the Gastroenterology or General Surgery team at Westin Hospitals can evaluate what's actually going on.

What Are the Symptoms of an Anal Fissure?

  • Sharp pain while passing stool
  • Burning pain that continues well after the bowel movement
  • Bright-red blood on the toilet paper
  • Blood visible on the outside of the stool
  • A visible small tear near the anus
  • A small skin tag, in long-standing cases

Don't assume rectal bleeding is automatically a fissure. Piles and other bowel conditions can cause bleeding too, which is exactly why an actual examination matters more than guessing based on symptoms alone.

What Causes Anal Fissures?

  • Hard or large stools
  • Constipation
  • Straining during bowel movements
  • Repeated diarrhoea
  • Childbirth

In some patients, recurrent or unusual fissures can be associated with another underlying bowel or inflammatory condition, and are worth a closer look rather than repeated self-treatment.

Anal Fissure vs Piles: What's the Difference?

Both can cause pain or bleeding, but they're genuinely different conditions.

FeatureAnal FissurePiles
What it isA small tear in the anal liningSwollen blood vessels in or around the anus
Pain patternSharp pain during or after passing stool is commonBleeding, itching, or swelling may be more common
Common causeOften linked to hard stool or strainingOften linked to increased pressure on rectal veins
BleedingBright-red bleeding may occurBright-red bleeding may also occur

Because the symptoms overlap this much, a proper examination, not a guess, is what actually identifies the cause. If you're trying to work out which one applies to you, our guide to piles surgery and piles treatment, symptoms & grades covers the other side of this comparison in more depth.

Acute vs Chronic Anal Fissure

A fissure that's just developed is usually treated conservatively first. If symptoms continue for several weeks or keep coming back, it can become chronic, and long-standing fissures sometimes develop a small skin tag, making them harder to heal without medical treatment. Persistent symptoms are worth getting reviewed rather than repeatedly self-treating something that isn't actually improving.

How Is an Anal Fissure Diagnosed?

A doctor can usually identify a typical anal fissure just by asking about your symptoms and gently examining the area. Not every patient needs further testing. That said, additional investigation is worth pushing for if the bleeding is unexplained, symptoms are unusual, the fissure keeps returning, another bowel condition is suspected, or you've noticed a change in bowel habits. Westin Hospitals provides the diagnostic facilities to support that evaluation when it's clinically needed.

Can an Anal Fissure Heal Without Surgery?

Yes. Many recent anal fissures improve without surgery at all. Treatment mostly comes down to keeping stools soft and reducing strain during bowel movements:

  • Gradually increasing fibre in the diet
  • Drinking enough fluids
  • Avoiding excessive straining
  • Managing constipation
  • Taking warm sitz baths
  • Staying physically active

Warm sitz baths specifically help relax the anal muscles and ease discomfort, a simple measure that makes a real difference for a lot of people.

What Medicines Are Used for Anal Fissures?

If basic measures aren't enough on their own, a doctor may recommend medicine to reduce pain, relax the anal muscles, and support healing:

Stool-softening treatment: managing constipation reduces repeated injury to the fissure with every bowel movement.

Topical medicines: certain prescription creams help relax the anal sphincter and improve blood flow to the area.

Botulinum toxin injection: in select persistent cases, an injection can temporarily relax the sphincter and give the tear a real chance to heal.

These are prescription decisions that need a proper medical evaluation first, not something to start on your own.

When Is Surgery Needed for an Anal Fissure?

Surgery isn't needed for every fissure. It becomes a real option when the fissure has gone chronic, the pain remains severe, medical treatment hasn't worked, the fissure keeps recurring, or ongoing muscle spasm is preventing healing altogether.

One established surgical option is lateral internal sphincterotomy: a small portion of the internal anal sphincter muscle is divided to reduce spasm and let the tear finally heal. Whether surgery makes sense depends on your symptoms, the examination, and your individual case. Patients needing surgical evaluation can consult Westin Hospitals' Gastrointestinal Surgery, Minimal Access Surgery & General Surgery department.

When Should You See a Doctor?

  • Severe pain during bowel movements
  • Repeated rectal bleeding
  • Symptoms that don't improve despite treating constipation
  • Fissures that keep recurring
  • Swelling or discharge around the anus
  • Fever with anal pain
  • Changes in bowel habits
  • Symptoms lasting several weeks

Don't assume every episode of rectal bleeding is "just" piles or a fissure. It's worth having it checked rather than guessed at.

Frequently Asked Questions

Can an anal fissure heal permanently?
Yes. Many anal fissures heal completely once constipation and repeated stool trauma are controlled. Chronic or recurrent fissures may need additional medical or surgical treatment.

Is fissure surgery always necessary?
No. Many fissures improve with lifestyle measures, constipation treatment, and prescribed medicines. Surgery is usually considered only for selected chronic or persistent cases.

Is a fissure more painful than piles?
Anal fissures commonly cause sharp pain during and after bowel movements, while piles more often cause bleeding, itching, swelling, or discomfort. Symptoms vary from person to person.

Can constipation cause an anal fissure?
Yes. Passing hard stools and repeated straining are among the most common causes of anal fissures.

Can fissures come back after treatment?
Yes. Recurrence is possible, particularly if constipation, hard stools, or repeated straining continue.

Which doctor treats anal fissures?
Persistent anal fissures are typically evaluated by a general surgeon or a doctor experienced in coloproctology. Gastroenterology evaluation may also be appropriate when another digestive condition is suspected.

Consult Westin Hospitals for Anal Fissure Treatment

If bowel movements repeatedly cause severe pain or bleeding, or a fissure just isn't healing, a proper evaluation can determine whether conservative care, medicines, or surgical treatment is the right path. Westin Hospitals, Madhapur provides Gastroenterology, General Surgery, and GI/Minimal Access Surgery, led by Dr. Manocharan T (FISCP, Coloproctology), supported by diagnostic facilities.

Dealing with pain or bleeding that isn't going away?
Book an Appointment with Westin Hospitals, or Contact Us for assistance.