Dr. Samhitha Reddy
Consultant Proctologist & Laparoscopic Surgeon
MBBS, MS, FMAS, FISCP, DMAS
- 8 Yrs
- ASCRS Member
By Dr Samhitha Reddy · MBBS, MS, FISCP, FMAS, DMAS 17 February 2025 4 min read Updated 26 August 2026
When it comes to issues in the anal region, two conditions often confuse: fissure vs. fistula. Although they both involve the same area, they are different in terms of causes, symptoms, and treatments. Understanding the fissure vs. fistula differences can help individuals seek the right care and avoid unnecessary discomfort. In this blog, we’ll explore […]
When it comes to issues in the anal region, two conditions often confuse: fissure vs. fistula. Although they both involve the same area, they are different in terms of causes, symptoms, and treatments. Understanding the fissure vs. fistula differences can help individuals seek the right care and avoid unnecessary discomfort.
In this blog, we’ll explore the difference between fissure and fistulas, their causes and symptoms, and how each is treated.
An anal fissure is a small tear or crack on the skin around the anus. These tears often occur when the skin is stretched too much during bowel movements, typically due to passing hard or large stools. People with an anal fissure may experience sharp pain during or after bowel movements, along with possible bleeding.
The pain from an anal fissure can be quite intense, sometimes making everyday activities, like sitting or walking, uncomfortable.
On the other hand, an anal fistula is a more complex condition in which there is an abnormal tunnel from the inside of the anal canal to the skin around the anus. Most fistulas are caused by an infection of the anal glands leading to an abscess.
The common symptoms of anal fistulas are persistent discharge, swelling, and discomfort near the anus. Others might also develop a fever. A fistula is different from a fissure because it is almost always a chronic condition that involves medical treatment.
The fissure vs. fistula debate comes down to the cause, symptoms, and treatment options. Let’s break down the difference between fissure and fistula:
| Aspect | Anal Fissure | Anal Fistula |
| Cause | Trauma to anal skin (hard stools, childbirth, etc.) | Infection in anal glands, abscess formation |
| Symptoms | Sharp pain during bowel movements, bleeding, itching | Persistent discharge, swelling, pain, fever |
| Location | Small tear in the anal skin | Abnormal tunnel between anal canal and skin |
| Pain | Intense pain during/after bowel movements | Pain or tenderness, especially with discharge |
| Treatment | Diet changes, topical creams, stool softeners, surgery | Surgery (fistulectomy), antibiotics, seton |
| Risk of Infection | Low | High, due to the presence of abscess |
Both fissure and fistula causes, and symptoms are distinct.
For anal fissures, the primary causes include:
Common symptoms of an anal fissure include:
On the other hand, anal fistula causes include:
Common Symptoms of an anal fistula can be:
Treatment of anal fissures is generally conservative, to alleviate pain and encourage healing. Here’s a breakdown of possible fissure and fistula treatment options:
Knowing the differences between fissure vs. fistula may change how you approach treatment and care. Both conditions are, of course, painful in the anal region. however, they arise from different causes, present different symptoms, and require distinct treatment options. If you find any signs or symptoms of anal fissures or anal fistulas, you should seek the advice of a medical expert without any further ado to not only avoid complications but also further improve your quality of life.
At Lux Hospitals, we provide the best fissure and fistula services with expert care, ensuring accurate diagnosis and effective treatment to help you recover quickly.
A general practitioner, gastroenterologist, or colorectal surgeon can treat fissures and fistulas. Lux Hospitals provides the best treatment for these conditions with expert care.
A fissure causes sharp pain and bleeding during bowel movements, while a fistula leads to persistent discharge, swelling, and possible fever. Consult a doctor for a proper diagnosis.
A fissure typically does not turn into a fistula, but untreated chronic fissures may lead to infection, which could contribute to fistula formation.
No, they are different conditions. A fissure results from a tear in the skin, whereas a fistula develops due to an infection or abscess that forms an abnormal tunnel.
Mild fissures can heal with dietary changes and topical treatments. However, fistulas usually require medical intervention, often surgery, to prevent complications.
Constipation can cause fissures by straining during bowel movements. While it doesn’t directly cause fistulas, prolonged constipation may lead to infections that can contribute to fistula formation.
Bleeding is more common with fissures, especially during bowel movements. Fistulas may cause occasional bleeding but are more associated with pus discharge.
Send your reports across and a senior surgeon will review them, explain the options and tell you honestly whether surgery is the right call.
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