7 Signs You Have an Anal Fistula

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Talking about pain or discharge near the anal area can feel uncomfortable, even shameful — I understand that. Many patients stay silent for months because they are embarrassed or unsure what is wrong. My aim here is to walk with you, clearly and compassionately, to help you recognise early signs of fistula, know what the fistula starting stage can feel and look like, and when to seek care, in the Ayurveda way.

What is an Anal Fistula?

An anal fistula (fistula-in-ano) typically appears as one or more small external openings or pits in the perianal skin, sometimes covered with granulation tissue, with surrounding redness, induration, and intermittent seropurulent or blood-tinged discharge; on gentle palpation, you may feel a firm cord or tract beneath the skin that represents the epithelialised channel connecting the anal canal to the skin. It most commonly follows an infected anal gland that formed an abscess and did not fully heal.

Early or “starting” stages usually follow an acute perianal abscess: patients first notice a painful, swollen boil (pidika) that bursts or is drained and, over days to weeks, fails to heal fully, instead forming a persistent draining point or cyclical swelling and discharge.

Clinically, the earliest red flags are recurrent localised pain, perianal swelling, itching or persistent serous/purulent seepage (often worse after defecation), and a history of a recently drained abscess; these features should prompt examination and, where available, imaging (MRI/endoanal ultrasound) to delineate any underlying tract.

From an Ayurveda perspective, the condition corresponds to Bhagandara,” whose classical descriptions emphasise a painful pidika near the anal verge that, when suppurative and unresolving, develops into a tract (darana) with prodromal signs (purvarupa) of pain, swelling and discharge and a pathogenesis linked to imbalance of Vata with involvement of Rakta and Maṃsa dhatus; these classical observations align closely with the modern clinical sequence from abscess → persistent draining sinus → established fistula.

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How does a Fistula look like?

People often ask, “How does a fistula look?” or “How fistula look like in the beginning?” In the fistula starting stage, you may see or feel only subtle changes: a tender lump, a small boil-like swelling, mild redness, or intermittent pus from a tiny spot. As the tract matures, an external opening may become visible, and it may leak pus or blood-stained fluid. Early recognition of these subtle signs makes a big difference in treatment and recovery.

  • Persistent, recurring pain around the anus

One of the most common fistula signs is pain that doesn’t fully go away. It may be a dull ache that becomes sharper during bowel movements or while sitting. Unlike temporary soreness, fistula pain often returns repeatedly and may be accompanied by other symptoms like swelling or discharge. If pain persists beyond a few days and does not respond to simple measures, please seek evaluation.

  • Recurrent swelling or a painful lump

An intermittent swelling or painful lump near the anal margin is a crucial indicator. Frequently, this represents an abscess that has drained partially (by itself or after treatment), but the deeper tract remains the classic pathway to a fistula. A history of a prior perianal abscess substantially raises the likelihood of fistula formation.

  • Persistent or foul-smelling discharge

When a tract is present, it often drains pus or a serous/blood-tinged fluid. You may notice persistent wetness, stains on underwear, and a foul odour. Because drainage can temporarily reduce pressure, some people feel short-lived relief and delay care, but persistent discharge is a clear early sign of fistula and should prompt assessment.

  • A small external opening or “non-healing pimple” near the anus

Over time, the external mouth of the tract can appear as a tiny opening, pit, or pimple-like lesion that does not heal properly. This visible opening, if present, is an unmistakable fistula sign. It may close intermittently and reopen, especially when infection flares, and it is often the reason patients finally decide to seek specialist care.

  •  Itching, skin irritation, or excoriation around the area

Chronic moisture and intermittent discharge irritate the surrounding skin. You may develop persistent itchiness, redness, or soreness that standard creams do not relieve. This local skin change, when combined with other symptoms, supports the possibility of an underlying fistula rather than a simple skin problem.

  •  Low-grade fever or general discomfort during flare-ups

There are systemic symptoms like low-grade fever, fatigue, and feeling ill, especially when seen along with infection. These manifestations suggest the body is undergoing an immune response. They emphasise the significance of following up care with professional medical intervention, as opposed to solely addressing the condition through home remedies.

  •  Bowel habit changes or pain with defecation

As the tract is in communication with the anal canal, there is often increased pain during defecation, a sense of incomplete evacuation, or a discomfort that never previously existed. While bowel changes are non-specific, when they accompany other signs above, they strengthen the probability of an anal fistula.

What can be mistaken for a fistula?

Conditions that mimic early signs of fistula include haemorrhoids, anal fissures, infected skin cysts, and dermatitis. Because symptoms overlap, clinical examination and sometimes imaging are required to differentiate them. If a problem recurs or does not respond to simple measures, consider specialist review rather than repeated self-treatment.

Treatment approaches

Apollo AyurVAID describes a spectrum of care that includes conservative measures, procedural Ayurveda-based options (for example, Ksharasutra therapy), and integrative perioperative care when needed. Evidence from clinical studies and randomised trials in the scientific literature supports Ksharasutra (medicated seton) and modern minimally invasive adaptations (such as MIKST) as effective options in selected patients, particularly where sphincter preservation and reduced recurrence are priorities. Treatment must be personalised based on anatomy, sphincter involvement, and patient preference.

When to see a doctor and what to expect?

If you notice two or more of the signs above, especially persistent pain, recurrent swelling, or continuous discharge, consult a specialist. Diagnosis usually involves clinical examination and, when needed, imaging (ultrasound or MRI) to map the tract. Management options will be discussed with you, and a plan will be chosen that balances healing with preserving continence and quality of life.

To Conclude

You are not to blame for this condition. Anal fistulas are treatable, and timely, empathetic care leads to good outcomes. If you are worried about how does fistula look like or whether a small lump or discharge is important, reach out to a clinician you trust and know that seeking help is the first step toward healing.

References

Sohrabi MR, Bahrami S, Mosalli M, Khaleghian M, Obaidinia M. Perianal fistula; from etiology to treatment – a review. Middle East J Dig Dis. 2024 Apr 30;16(2):76–85. external link
Lu M-Y, Wang J, Zhao-Chu W, Zhao-Lian C, et al. Diagnosis and treatment for anal fistula: a systematic review of clinical practice guidelines and consensus statements. Front Surg. 2025 Jul 2;12:1566130. external link
Almughamsi AM, Elhassan YH. Understanding the anatomical basis of anorectal fistulas and their surgical management: exploring different types for enhanced precision and safety. Surg Today. 2025;55:457–474. external link
Biswas N. Perspective from Ayurveda on Bhagandara (Ano’s Fistula). Int J Curr Sci. 2022;12(4):239–249. external link
Shankar, K. M. P., SreeDeepthi, G. N., Rohit, K. S., & Swamy, G. K. (2019). Ayurvedic management of fistula-in-ano: A systematic review protocol. Journal of Research in Ayurvedic Sciences, 3(3), 100–105. external link

FAQ

How does a fistula look in the early stage?
In the fistula starting stage, it usually looks like a small tender boil, lump, or tiny pit near the anus with intermittent pus or blood-tinged discharge.
What is the most common fistula sign patients notice?
The most frequent early sign of a fistula is persistent or recurring pain around the anal area that repeatedly returns after brief relief.
Can a drained abscess turn into a fistula?
Yes, a perianal abscess that bursts or is drained but fails to heal completely is the classic pathway to the formation of an anal fistula.
What is an effective Ayurveda-based treatment for anal fistula?
Ksharasutra therapy is a clinically proven, sphincter-preserving Ayurveda procedure that offers good healing with low recurrence in selected patients.

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