How Does an Anal Fistula Form?

Quick answer: An anal fistula is an abnormal channel connecting the skin around the anus to the intestine inside the anus. It typically develops as a result of an infection. These infections begin with the inflammation of blocked glands in the anal area and may lead to abscess formation. How Does an Anal Fistula Progress? If left

Medically reviewed by Op. Dr. Yasir Gözü · General Surgery and Proctology · Last updated: July 20, 2026

An anal fistula is an abnormal channel connecting the skin around the anus to the intestine inside the anus. It typically develops as a result of an infection. These infections begin with the inflammation of blocked glands in the anal area and may lead to abscess formation.

How Does an Anal Fistula Progress?

If left untreated, an anal fistula can develop into a more complex structure. Initially appearing as a simple channel, the fistula may branch out over time, forming a complex network of multiple channels. This condition can severely impact the patient’s quality of life. Additionally, chronic inflammation may develop in the tissues surrounding the fistula. This inflammation causes persistent discharge and infections while increasing sensitivity around the anus.

Treatment Methods for Anal Fistulas

Treatment methods for an anal fistula vary depending on the patient’s condition. Physicians may approach patients with different methods t

Simple Fistulotomy
A simple fistulotomy is a surgical method where the anal fistula is cut open and allowed to heal. This procedure is performed with minimal damage to the surrounding tissues of the fistula. It is generally preferred for simple fistulas. During the procedure, the fistula tract is opened, cleaned, and left open for natural healing to occur. The success of the operation depends on the type and location of the fistula. When performed correctly, it has a high success rate. However, the surgeon’s experience and the patient’s overall health can influence the outcomes.

Seton Placement
Seton treatment involves placing a thread or band within the fistula tract. This method helps control the infection around the fistula. The seton allows the fistula to gradually shrink and facilitates infection dr It is particularly recommended for complex and deep fistulas. The treatment process may take several months and is often combined with surgical methods. Seton placement helps preserve the tissues around the fistula and reduces the risk of damage to the anal sphincter muscles.

LIFT Procedure
The LIFT (Ligation of Intersphincteric Fistula Tract) procedure is a minimally invasive technique used for treating complex anal fistulas. This method involves ligating and removing the portion of the fistula located between the anal muscles. The LIFT procedure speeds up the healing process while minimizing the risk of damage to the sphincter muscles. It has a low complication rate and a high success rate post-procedure.

Fistulectomy
Fistulectomy is another surgical method used for rep This technique involves closing or rep Fistulectomy is generally preferred for complex cases where other methods have f

Post-Treatment Care for Anal Fistulas

The post-treatment phase is crucial for ensuring a quick and healthy recovery. Patients should follow hygiene recommendations from their doctor and keep the treated area clean. Proper wound care is essential to prevent infections. Additionally, during the recovery period, a balanced diet should be followed, emphasizing fiber-rich foods to regulate bowel movements.

Frequently Asked Questions

How does an anal fistula form?

An anal fistula is an abnormal channel connecting the skin around the anus to the intestine, and it typically develops as a result of an infection. These infections begin with inflammation of blocked glands in the anal area and may lead to abscess formation.

What happens if an anal fistula is left untreated?

An untreated fistula can develop into a more complex structure, branching out over time into a network of multiple channels. Chronic inflammation may also develop in surrounding tissues, causing persistent discharge and infections while increasing sensitivity around the anus.

What is a fistulotomy?

A fistulotomy is a surgical method where the fistula is cut open, cleaned, and left open so natural healing can occur, with minimal damage to surrounding tissues. It is generally preferred for simple fistulas and has a high success rate when performed correctly.

What is seton treatment for a fistula?

Seton treatment involves placing a thread or band within the fistula tract to help control infection, allow the fistula to gradually shrink, and facilitate drainage. It is particularly recommended for complex and deep fistulas, may take several months, and helps reduce the risk of damage to the anal sphincter muscles.

What is the LIFT procedure?

The LIFT (Ligation of Intersphincteric Fistula Tract) procedure is a minimally invasive technique for complex anal fistulas that involves ligating and removing the portion of the fistula located between the anal muscles. It speeds healing while minimizing the risk of sphincter damage, with a low complication rate and high success rate.

What should I do after anal fistula treatment?

Follow your doctor's hygiene recommendations, keep the treated area clean, and practice proper wound care to prevent infections. A balanced diet emphasizing fiber-rich foods also helps regulate bowel movements during recovery.

Sources

• NHS - Anal fistula
• American Society of Colon and Rectal Surgeons (ASCRS) - fascrs.org

This article is for informational purposes only and does not replace a professional medical consultation. For diagnosis and personalized treatment, please book an appointment.