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Piles & fissure

Piles, fissure or fistula: what is the difference?

Piles are swollen cushions of blood vessels, a fissure is a small tear and a fistula is a tunnel that leaks pus. Their symptoms overlap, so bleeding or lasting pain from the back passage deserves an examination.

Updated 30 September 2026 · Dr. Sanjit Gogoi, General & Laparoscopic Surgeon
PilesBleeding, lump, little pain
FissureSharp pain after motion
FistulaRecurring boil, discharge
Rectal bleedingAlways get it examined
Adult sitting uncomfortably on a chair, a common complaint with piles or fissure
Dr. Sanjit GogoiMS, MRCS (Edinburgh) · KMC 96096

The short answer

Piles (haemorrhoids) are swollen blood vessels in the anal canal that typically bleed and may form a lump, often without much pain. A fissure is a small tear in the lining of the anus that causes sharp, cutting pain during and after passing stool. A fistula is a small tunnel between the inside of the anal canal and the skin outside, usually left behind by an abscess, that keeps leaking pus or blood.

They are three different problems with different treatments, but they can feel similar, and sometimes two are present together. That is why an examination matters more than guessing.

Piles, fissure and fistula compared

SymptomPilesFissureFistula
PainUsually mild or none; severe only if a pile clots or gets stuck outsideSharp, cutting or burning pain during motion, lasting minutes to hours afterwardsThrobbing pain and swelling that builds up and eases once pus drains
BleedingBright red blood dripping into the pan or on the paper, sometimes quite a lotSmall streak of bright red blood on the stool or paperBlood mixed with pus, staining the underwear
LumpSoft lump that may come out on straining and go back by itself or with a pushSmall skin tag at the edge of the anus in long-standing fissuresSmall opening or boil-like bump on the skin near the anus
DischargeMucus and itching, mainly with larger pilesUsually nonePus or watery discharge that keeps coming back
Typical causeConstipation, straining, long sitting on the toilet, pregnancy, low-fibre dietPassing a hard or large stool; sometimes diarrhoea or childbirthAn anal abscess (infected gland) that burst or was drained but did not fully heal
Usual first stepFibre, fluids and medicines; a procedure or laser for larger or bleeding pilesStool softeners and prescribed ointments; a procedure if it does not healSurgery, as a fistula very rarely closes with medicines

This table shows typical patterns. Real symptoms are often less tidy, and one person can have more than one of these conditions.

Piles (haemorrhoids) in more detail

Everyone has cushions of blood vessels in the anal canal; they help with control. They become piles when they swell and slip down, usually from straining with constipation or sitting for long on the toilet (scrolling on the phone does not help). Internal piles are graded 1 to 4 according to how far they come out.

Early piles are usually managed first with more fibre and water, not straining, and medicines your doctor prescribes, and many settle this way. Larger, bleeding or prolapsing piles may need banding, laser treatment or surgery. See piles treatment for the options, and the piles surgery cost guide for what affects the price in Bangalore.

Anal fissure in more detail

A fissure is a small split in the delicate skin at the anal opening, most often at the back. The tear makes the ring of muscle around the anus go into spasm, which reduces blood flow and stops the tear from healing. A cycle of pain, and fear of the next motion, sets in. The pain is often described as passing glass.

Most new (acute) fissures heal within about 6–8 weeks with softer stools, warm sitz baths and prescribed ointments that relax the muscle. A fissure that lasts longer is called chronic and may need further treatment, such as a muscle-relaxing injection or a minor procedure to ease the spasm. More on anal fissure treatment.

Anal fistula in more detail

A fistula usually starts as an anal abscess: a painful, swollen, sometimes feverish boil near the anus caused by an infected gland. When the abscess bursts or is drained, a tunnel can remain between the gland inside the anal canal and the skin outside. It then keeps discharging, closing over, swelling up and discharging again.

Antibiotics may calm an episode, but they do not close the tunnel. Treatment is surgical, and the method depends on how the tunnel runs in relation to the sphincter muscles that control continence; an MRI scan is sometimes needed to map it. Options include laying the tract open, a seton (a soft thread placed through the tract), and sphincter-saving techniques including laser. See anal fistula treatment.

A painful swelling with discharge higher up, between the buttocks near the tailbone, is usually a different condition called a pilonidal sinus.

Why self-diagnosis is unreliable

Many people label any problem down there as "piles" and buy an ointment, or put off a check-up because of embarrassment. There are good reasons not to:

  • The symptoms overlap. Bleeding happens with all three, and a chronic fissure often has a skin tag that looks like a pile.
  • More than one problem can be present, such as piles together with a fissure.
  • Rectal bleeding has other causes, including polyps, inflammatory bowel disease and cancers of the bowel or anus. These are less common, but they are the reason bleeding should never be assumed to be just piles.
  • The wrong treatment wastes time. A pile cream will not heal a fistula, and delay can let an abscess or fistula become more complex.
Get rectal bleeding examined, especially if you are over 40, the blood is dark or mixed with the stool, your bowel habit has changed for more than a few weeks, you are losing weight or feel unusually tired and breathless, or there is a family history of bowel cancer. A colonoscopy may be advised. Heavy bleeding, or fever with a painful swelling near the anus, needs urgent care.

What happens at the examination

For most people the examination takes only a few minutes and is much less of an ordeal than they fear. After talking through your symptoms, the surgeon looks at the area while you lie on your side, and may do a gentle check with a gloved finger and a small, lubricated viewing tube (proctoscope).

If a fissure is very painful, the internal part of the examination may be postponed or done with a numbing gel. You can have a family member with you if you prefer, and you can ask the surgeon to pause at any point.

When to see a surgeon

See a surgeon if you have bleeding from the back passage, pain during or after motions that has lasted more than a week or two, a lump that comes out, or a boil or discharge near the anus. Earlier treatment usually means simpler treatment.

Dr. Sanjit Gogoi is a General and Minimal Access (Laparoscopic) Surgeon with about 18 years in general, laparoscopic and laser surgery, including laser treatment for piles, fissure, fistula and pilonidal sinus. He will examine you, explain which problem you have in plain language, and talk through the options, from medicines to laser treatment, before anything is decided.

Dr. Sanjit consults at SPARSH Hospital, Sarjapur Road by day (10 am to 5 pm) and at his evening clinic in Doddakannelli (5 pm to 8 pm), Monday to Saturday. Book a consultation or message +91 99160 26256 on WhatsApp.

Dr. Sanjit Gogoi
Your surgeonDr. Sanjit Gogoi

MBBS, MS (General Surgery), MRCS (Edinburgh). General and Minimal Access Surgeon with about 18 years in general, laparoscopic and laser surgery. Consults at SPARSH Hospital, Sarjapur Road (10 am – 5 pm) and his evening clinic in Doddakannelli (5 – 8 pm). KMC Reg. No. 96096. More about Dr. Sanjit

FAQs

Common questions

For anything about your own case, send your report on WhatsApp and Dr. Sanjit's team will guide you.

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Can piles turn into a fistula?+

No. Piles and fistulas are different conditions with different causes. Piles are swollen blood vessels, while a fistula almost always follows an infected anal gland that formed an abscess. A person can, however, have both at the same time, which is one reason a proper examination is useful before any treatment is started.

Is bleeding from the back passage always piles?+

No. Piles and fissures are the most common causes, but bleeding can also come from polyps, inflammation of the bowel or, less commonly, cancer. Bright red blood on the paper in a young person with constipation is often from piles or a fissure, but it should still be examined at least once. Dark blood, blood mixed with stool, weight loss or a change in bowel habit need prompt assessment.

Will a fissure heal by itself?+

Many new fissures heal within about 6–8 weeks once stools are kept soft and the muscle spasm is treated with prescribed ointments. A fissure that keeps tearing or lasts longer than this is less likely to heal without further treatment, such as an injection or a minor procedure to relax the sphincter muscle. Ongoing pain should be reviewed by a surgeon rather than endured.

Does a fistula always need surgery?+

In almost all cases, yes. Antibiotics can settle an infection for a while, but the tunnel itself rarely closes without treatment, and it can become more branched over time. The type of procedure depends on how the tunnel relates to the sphincter muscles. Your surgeon will explain the options, including sphincter-saving and laser techniques where suitable, and the expected recovery.

Is the examination for piles uncomfortable?+

Most people find it mildly uncomfortable rather than painful, and it takes only a few minutes. Lubricating gel is used, and the surgeon explains each step before doing it. If you have a very painful fissure, the internal part of the examination may be postponed or done with a numbing gel. Telling the surgeon if something hurts allows them to stop or adjust.

Talk to a surgeon before you decide.

Bring your scan, your questions and a family member. You will leave knowing your options.

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