Anal Fistula: Causes, Symptoms & Painless Laser Treatment
An anal fistula is a common but distressing problem that many people feel too embarrassed to discuss. It causes recurring discharge of pus near the back passage and, importantly, it does not heal on its own — it needs proper treatment. The good news is that with modern laser techniques, an anal fistula can now be treated in a minimally invasive, largely painless way that protects the important muscles that keep you continent. This guide explains what a fistula is, why it happens, the symptoms, and the safe treatment available in Lahore — in complete privacy.
What Is an Anal Fistula?
An anal fistula is a small abnormal tunnel that connects the inside of the back passage (the anal canal) to the skin near the anus. It has an internal opening inside the anal canal and one or more external openings on the surrounding skin. Because this tunnel stays lined with infection, it keeps discharging — and cannot close by itself.
Why Do Anal Fistulas Happen?
Most fistulas begin with an anal abscess — an infection of a tiny gland inside the anal canal that fills with pus. The abscess causes a painful, swollen lump near the anus. When the abscess drains or is opened, the infection often leaves behind a tunnel — the fistula. So a fistula is frequently the after-effect of a previous abscess.
Less commonly, fistulas are linked to other conditions such as Crohn’s disease, tuberculosis, or diabetes, which is why a proper assessment is important.
Symptoms of an Anal Fistula
- Recurring discharge of pus (sometimes blood-stained) near the back passage — often staining the underwear
- A small opening or lump in the skin near the anus that leaks
- Pain and swelling that build up, then ease when the pus discharges
- Skin irritation, itching or soreness around the anus
- A history of repeated abscesses in the same area
The pattern of building discomfort followed by relief when it discharges — happening again and again — is very typical of a fistula.
An Anal Fistula Will Not Heal on Its Own
This is the key point. Creams, antibiotics and home remedies may calm the symptoms for a while, but they cannot cure a fistula — the tunnel remains and the discharge returns. The only lasting cure is a procedure to deal with the tunnel. Left untreated for years, a fistula can become more complex, form new branches, and (very rarely) lead to more serious problems — so it is best treated properly and early.
How Is It Diagnosed?
A surgeon can usually diagnose a fistula by examining the area and identifying the external opening. To map the exact path of the tunnel and its relation to the muscles — which is essential for safe treatment — an MRI scan or an ultrasound may be used, especially for complex or recurrent fistulas.
Treatment: Modern Laser vs Traditional Surgery
Treatment must achieve two goals at once: heal the fistula and protect the muscles (sphincters) that control continence. The main options are:
1. Traditional surgery. Older techniques such as laying the tract open (fistulotomy) or placing a seton (a soft thread) are effective, especially for complex fistulas, but recovery can be slower and there is more focus on protecting the muscle.
2. Painless laser treatment (modern option). For suitable fistulas, laser fistula treatment is a major advance. A fine laser fibre is passed into the tunnel and gently seals it from the inside. The benefits are significant:
- Minimally invasive — no large cuts
- Preserves the sphincter muscles, protecting continence
- Much less pain and a faster recovery
- Usually a day-case — home the same day
- Quick return to work and daily life
Your surgeon will examine you and recommend the safest, most effective approach for your particular fistula.
When to See a Surgeon in Lahore
See a surgeon if you have ongoing or recurring discharge near the back passage, a leaking opening in the skin, or repeated abscesses. The sooner a fistula is assessed, the simpler the treatment tends to be. Prof. Dr. Zahid Mahmood is a General, Laparoscopic & Laser Surgeon in Lahore with over 30 years of experience in the modern, sphincter-preserving treatment of anal fistula and other anorectal conditions — in complete privacy and comfort.
👉 Book a confidential consultation today, or call 0300-4130159.
Frequently Asked Questions About Anal Fistula
Can an anal fistula heal without surgery?
No. Medicines and creams may relieve symptoms temporarily, but a fistula tunnel does not close on its own. A procedure is needed for a lasting cure.
Is laser fistula treatment painful?
It is done under anaesthesia, so you feel nothing during the procedure. Because it is minimally invasive with no large cuts, discomfort afterwards is usually mild and settles quickly.
Will treatment affect my control over motions?
Protecting the continence muscles is the top priority. Modern laser treatment is specifically designed to preserve these muscles, which is one of its main advantages over older methods.
Can an anal fistula come back after treatment?
Most fistulas are cured with proper treatment, but complex fistulas can sometimes recur and need a further procedure. Careful assessment and mapping of the tunnel beforehand reduce this risk.
Is an anal fistula the same as piles?
No. Piles are swollen blood vessels that usually cause painless bleeding, while a fistula is an infected tunnel that discharges pus. They are different conditions with different treatments, so a proper examination is important.
Medically reviewed by Prof. Dr. Zahid Mahmood (MBBS, FCPS), General, Laparoscopic & Laser Surgeon, Lahore. This article is for general public awareness and education. It is not a substitute for a personal medical consultation. Please see a qualified surgeon for advice about your own condition.