Procedure

Anal Fistula Treatment in Santa Margarita, CA

If you experience painful swelling around your anus, you may have an anal fistula. Albert Chung, MD, a double board-certified colorectal surgeon, provides expert diagnosis and personalized in-office treatment for anal fistulas at his practice in Santa Margarita, California. Prompt evaluation and treatment can quickly alleviate discomfort and prevent potential complications. Call (714) 988-8690 today to schedule your appointment and start your journey to relief.

Anal Fistula
Anal fistulas don't heal on their own. They need the right kind of treatment.
Dr. Chung offers the full range of modern techniques, from simple fistulotomy to sphincter-sparing procedures for complex cases.

An anal fistula is a small tunnel that forms between the skin near the anus and the anal canal. Fistulas typically develop from an infection that started in an anal gland, which then spreads and creates a channel filled with pus. This causes pain, swelling, drainage, and sometimes fever. Because fistulas don't close on their own and can lead to serious complications including recurrent abscesses and continence problems, timely treatment is essential.

Persistent drainage or pain that won't resolve? Book an evaluation.
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How Anal Fistulas Develop

Most anal fistulas start as anal abscesses. An abscess forms when anal glands become clogged and infected, producing a painful collection of pus. As the infection progresses, the body often creates a pathway to drain the pus, and that pathway is the fistula. Roughly half of people with an abscess end up developing a fistula.

While most fistulas come from abscesses, other causes include Crohn's disease (which can produce complex perianal fistulas), sexually transmitted infections, trauma, diverticulitis, tuberculosis, or radiation exposure. Identifying the underlying cause matters because it shapes treatment.

Types of Anal Fistulas

Fistulas are classified by their relationship to the anal sphincter muscles. The type determines which treatment approach will work and how carefully sphincter function needs to be protected.

Intersphincteric
Most common (~70%)
Runs between the internal and external sphincter muscles without crossing either completely. Usually the simplest type to treat.
Transsphincteric
Moderately complex
Passes through both the internal and external sphincter muscles. Treatment must carefully balance healing the fistula with preserving continence.
Suprasphincteric
Complex
Extends up and over the top of the sphincter complex. Requires more specialized sphincter-sparing approaches.
Extrasphincteric
Rare and complex
Bypasses the sphincter complex entirely, often connected to a pelvic source. Typically associated with underlying conditions like Crohn's disease or trauma.
Superficial
Simplest to treat
Doesn't involve the sphincter muscle at all. Usually the most straightforward to repair with fistulotomy.

Preserving sphincter function is a key priority in fistula surgery. Complex fistulas involving significant sphincter muscle are typically treated with sphincter-sparing techniques rather than direct division of muscle.

Common Symptoms

Fistula symptoms tend to be persistent and recurrent, which is one of the clearest signs you're dealing with one.

Persistent pain and discomfort near the anus, especially during bowel movements or sitting
Swelling or a tender lump near the anal opening
Redness around the anus
Drainage of pus, blood, or stool from a small opening in the skin near the anus
Recurrent abscesses in the same area
Skin irritation from ongoing drainage
Discomfort during urination or defecation
Fever, in cases with active infection

When to Seek Immediate Care

!Signs that need urgent attention
  • High fever or chills
  • Severe pain that's rapidly worsening
  • Spreading redness or swelling around the anus
  • Feeling very unwell along with anal symptoms

These can indicate an active abscess or spreading infection that may require urgent drainage.

How Anal Fistulas Are Diagnosed

During your initial consultation, Dr. Chung will thoroughly review your symptoms and medical history. A gentle physical examination often identifies the fistula directly. Additional testing helps characterize complex fistulas and their relationship to the sphincter muscles.

Physical examination and anoscopy
Typically identifies the external opening, tenderness, and drainage. Anoscopy examines the inside of the anal canal to locate the internal opening.
MRI of the pelvis
The most detailed imaging for complex fistulas. Maps the fistula tract and its relationship to the sphincter muscles, which guides surgical planning.
Endoanal ultrasound
Uses a small ultrasound probe to visualize the sphincter and fistula tract. Useful for certain fistula types.
Colonoscopy
May be recommended if Crohn's disease or another underlying cause is suspected, since treatment approach differs.

At-Home Care and Symptom Management

While professional treatment is ultimately needed to resolve a fistula, supportive home care can ease symptoms and keep you comfortable in the meantime. Warm sitz baths (soaking the anal area in warm water for 10 to 15 minutes, 2 to 3 times daily) reduce pain and inflammation. Good hygiene, gentle cleaning after bowel movements, and soft pads to absorb drainage all help. Dietary adjustments to keep bowel movements soft, along with over-the-counter pain relievers and stool softeners, can make a real difference while you wait for treatment.

Treatment Options

Surgery is the primary treatment for anal fistulas. The specific procedure depends on the fistula type, complexity, and how much sphincter muscle is involved. Protecting continence is a core consideration in every treatment decision.

Fistulotomy
For simple fistulas
The fistula tract is opened along its length and allowed to heal from the inside out. Highly effective for simple fistulas that don't involve significant sphincter muscle. Not used for complex fistulas because it could affect continence.
Seton placement
For complex fistulas
A thin surgical thread or rubber loop (called a seton) is placed through the fistula to keep it draining and reduce inflammation. Sometimes used as a first step before a definitive procedure, or as long-term management for Crohn's-related fistulas.
LIFT procedure
Sphincter-sparing
The Ligation of Intersphincteric Fistula Tract ties off the fistula between the sphincter muscles, without cutting through either. Good option for transsphincteric fistulas where preserving muscle matters.
Advancement flap
Sphincter-sparing
A flap of healthy tissue from inside the rectum is advanced to cover the internal opening of the fistula. Preserves sphincter muscle and works well for higher or more complex fistulas.

Dr. Chung also offers laser fistula treatment (FiLaC) as a minimally invasive option. For detail, see the laser treatment page.

A Note on Crohn's Fistulas

Perianal fistulas in Crohn's disease are often more complex and recurrent than typical cryptoglandular fistulas. Treatment usually combines medical therapy (biologics like anti-TNF agents) with conservative surgical approaches (often a long-term seton to maintain drainage without aggressive surgery). The goal is controlling symptoms and preserving function rather than attempting definitive repair of every tract.

Recovery and Post-Surgical Care

Recovery timelines depend on the procedure. Most patients resume normal activities within a few weeks. Sitz baths several times daily, careful hygiene, soft stools (supported by fiber and adequate hydration), and activity restrictions during initial healing are all part of the aftercare plan. Dr. Chung provides detailed post-operative instructions and schedules follow-up appointments to confirm healing and reduce the risk of recurrence.

Warm sitz baths several times daily and after bowel movements.
Keep the area clean and dry between baths.
Adequate fiber and hydration to keep bowel movements soft.
Take stool softeners as recommended.
Avoid heavy lifting and strenuous activity during initial healing.
Attend all follow-up appointments to confirm the tract is healing properly.

Get expert fistula care

Whether you're dealing with a new fistula, a recurrent one, or complex Crohn's-related perianal disease, Dr. Chung can walk you through the right treatment for your situation.

Book a consultation Call (714) 988-8690

Frequently asked questions

Can anal fistulas heal without surgery?

Anal fistulas rarely heal independently and typically require surgical intervention to resolve fully and prevent recurrence.

Is surgery for anal fistulas painful?

Dr. Chung utilizes minimally invasive techniques and effective pain management strategies to minimize discomfort during recovery.

How long does recovery typically take?

Recovery can vary but generally ranges from a few weeks to several months, depending on the complexity of the fistula and the chosen treatment method.

Still have questions?

We are here to hear you as you heal. Feel free to reach out to us.

Schedule your consultation to explore Anal Fistula.

Prompt diagnosis and treatment greatly improve colorectal cancer outcomes. Call Dr. Albert Chung’s colorectal clinic in Orange County.