Many people do live with a fistula without surgery, sometimes for years, though whether that is safe or advisable depends entirely on the type of fistula, its underlying cause, and how much it disrupts daily life. Some fistulas close on their own with conservative care. Others persist but remain manageable with drainage, medication, or lifestyle adjustments. And some carry real long-term risks if left unrepaired. The honest answer is not a flat yes or no but a set of trade-offs that look different for each kind of fistula and each person’s circumstances.
Why the Type of Fistula Changes Everything
A fistula is an abnormal tunnel connecting two body surfaces or cavities that should not be connected. That definition covers a wide range of problems: an anal fistula tunneling from the inside of the rectum to the skin near the anus, a vesicovaginal fistula linking the bladder to the vagina, an enterocutaneous fistula connecting the intestine to the skin surface, or an arteriovenous fistula joining an artery and vein (sometimes created deliberately for dialysis access). The biology, the symptoms, the risks of doing nothing, and the chances of spontaneous healing differ dramatically across these types. Grouping them under one word can mislead people into thinking the same advice applies to all of them.
Anal Fistulas and Living Without Definitive Repair
Anal fistulas are the type most people are asking about when they search this question. They usually develop after a perianal abscess. Roughly 30 to 50 percent of people who have an abscess drained will go on to develop a fistula in the months or years afterward, and 30 to 70 percent already have a fistula present when the abscess is first treated.1Diseases of the Colon & Rectum. The American Society of Colon and Rectal Surgeons Clinical Practice Guidelines for the Management of Anorectal Abscess, Fistula-in-Ano, and Rectovaginal Fistula That means anal fistulas are common, and many people face the question of what to do about them.
The short-term experience of an untreated anal fistula typically involves intermittent drainage of pus or mucus, pain that flares and subsides, and sometimes recurrent abscesses. Some people find these symptoms tolerable and choose to live with the fistula rather than face surgery, especially when they learn that complex fistula operations carry some risk of affecting bowel control. Management goals in these cases focus on eradicating the fistula and preventing recurrence while preserving continence, but the reality is that treatment itself can sometimes result in incontinence or even a stoma, outcomes that profoundly affect quality of life.2BMJ. Management of anal fistula
For people with Crohn’s disease, a permanent loose seton (a thread placed through the fistula tract to keep it draining) is a common long-term strategy that deliberately avoids curative surgery. In studies following Crohn’s patients with this approach, the seton controlled local infection in about half of patients and was associated with low rates of subsequent incontinence.3PubMed. Long-term outcome of loose seton for complex anal fistula: a two-centre study of patients with and without Crohn’s disease That is not a cure, but for someone whose alternative might be a major operation with uncertain results, it can be a reasonable way to live with the fistula for years.
When Crohn’s Disease Is Driving the Fistula
Perianal fistulas affect a large proportion of Crohn’s disease patients over the course of their illness, and in this context, medical therapy often takes the lead over surgery. Biologic drugs that block a protein called tumor necrosis factor (TNF) can promote fistula healing without an operation. Research consistently shows that higher drug levels in the bloodstream are linked to better outcomes. In one study, patients who achieved fistula healing had substantially higher drug concentrations than those who did not, regardless of whether they were on infliximab or adalimumab.4European Journal of Gastroenterology & Hepatology. Higher anti-tumor necrosis factor levels are associated with perianal fistula healing and fistula closure in Crohn’s disease A separate study found that about 73 percent of patients on maintenance infliximab achieved some degree of fistula healing, and roughly 77 percent of those on adalimumab did as well, though complete closure rates were lower.5PubMed Central. Higher infliximab and adalimumab trough levels are associated with fistula healing in patients with fistulising perianal Crohn’s disease
The practical takeaway: if you have Crohn’s-related perianal fistulas, optimizing your biologic therapy with your gastroenterologist is often the first-line approach, and many people manage their fistulas medically for extended periods. Complete healing without surgery is possible for some, while others achieve enough improvement to avoid the need for complex surgical repair. However, a fistula in a Crohn’s patient that keeps recurring despite treatment can signal undertreated disease and warrants a thorough workup. A systematic review found that repeated perianal interventions, weight loss, and abdominal pain were strong red flags for undiagnosed or poorly controlled Crohn’s disease.6SpringerLink. Early diagnosis of Crohn’s disease in patients presenting with a perianal fistula: systematic review and development of a perianal red flags index
Conservative Treatments That Avoid the Operating Room
Beyond biologics for Crohn’s, a growing number of non-surgical interventions have been tried for anal fistulas in general. A review of 21 studies on conservative treatments found approaches ranging from continuous drainage and antibiotics to injection therapies using substances like platelet-rich plasma, stem cells, and silver nitrate solution. Healing rates across these studies varied widely, from about 44 percent to 100 percent, though sample sizes were often small and follow-up periods ranged from a few months to over three years.7PubMed Central. Curing cryptoglandular anal fistulas—Is it possible without surgery? The inconsistency is honest: conservative approaches work well for some patients and not at all for others, and researchers have not yet pinned down reliable predictors of who will respond.
Stem cell therapy in particular has attracted serious research attention. An umbrella review of 19 systematic reviews found that stem cell treatment improved fistula closure rates in both the short and long term, with roughly 1.4 to 1.5 times higher odds of closure compared to controls. The safety profile was comparable to standard treatments, with no significant increase in serious adverse events.8PubMed Central. Efficacy and safety of stem cell therapy for fistula management: an overview of existing systematic reviews A separate meta-analysis put the overall pooled healing rate for stem cell treatment at about 58 percent, with Crohn’s fistulas responding slightly better than those from other causes.9PubMed Central. Systematic review and meta-analysis of the efficacy and safety of stem cell treatment of anal fistulas These are encouraging numbers, though still a long way from guaranteed cures. Access to stem cell therapy also remains limited in most healthcare settings.
Vesicovaginal Fistulas and Catheter Management
Vesicovaginal fistulas, which cause urine to leak through the vagina, present a different picture. Conservative management here usually means prolonged bladder drainage with a catheter, giving the tissue time to heal on its own. For small fistulas, this can work. One case report described complete healing after just four weeks of continuous bladder drainage.10International Journal of Reproduction, Contraception, Obstetrics and Gynecology. Conservative management of vesicovaginal fistula: a rare case report But the broader data is sobering: in a systematic review and meta-analysis of over 1,400 vesicovaginal fistulas following gynecologic surgery, about 16 percent were initially managed conservatively with catheter drainage lasting two to twelve weeks. Of those, only 8 percent healed with drainage alone; the remaining 92 percent eventually required surgical repair.11PLOS ONE. Management of vesicovaginal fistulas in women following benign gynaecologic surgery: A systematic review and meta-analysis
The odds of conservative success seem to depend on the fistula’s size and how soon catheter drainage is started. For radiation-related fistulas, where tissue healing is impaired, additional tools may help. One case report described a complex vesicovaginal fistula after repeated cancer surgeries that was managed with prolonged catheterization, nephrostomy tubes, and monthly laser therapy sessions. After three months of laser treatment, the fistula resolved completely, and follow-up at six months showed no recurrence.12PubMed Central. Conservative Resolution of a Vesicovaginal Fistula Including Laser Therapy in a Patient Who Underwent Recurrent Surgery After Prior Radiotherapy for Endometrial Cancer These approaches remain uncommon, but they illustrate that surgery is not always the only path forward, even for difficult cases.
Enterocutaneous Fistulas and Nutritional Support
Enterocutaneous fistulas, which connect the intestine to the skin surface, are among the most medically serious types. They usually develop after abdominal surgery and can drain large volumes of intestinal content through the skin, leading to malnutrition, dehydration, and skin breakdown. Living with one long-term without any intervention is genuinely dangerous, but the intervention does not always have to be another operation.
Nutritional support, particularly intravenous (parenteral) nutrition, plays a critical role. Patients with high-output fistulas draining more than 500 milliliters per day often need parenteral nutrition to maintain fluid balance and meet nutritional needs while waiting for the fistula to close on its own or preparing for surgery.13PubMed Central. Use of parenteral nutrition in the management of enterocutaneous fistula In one series of 75 patients with postoperative enterocutaneous fistulas who all received parenteral nutrition, about 71 percent of fistulas closed spontaneously without further surgery.14PubMed. Management of postoperative enterocutaneous fistulas: the roles of parenteral nutrition and surgery That is a striking success rate, though it came with a 21 percent mortality rate, underscoring how serious these fistulas can be. The point is that with aggressive nutritional and medical support, the body sometimes repairs the connection on its own.
The Risks of Leaving a Fistula Indefinitely
Deciding to live with a fistula is not the same as deciding to ignore it. Untreated anal fistulas carry several long-term risks beyond chronic discomfort. Recurrent abscesses are the most immediate concern: an undrained fistula tract can periodically fill with pus, causing painful flare-ups that may need emergency treatment. Chronic infection can also gradually damage the surrounding tissue, making an eventual surgical repair more complex.
A rarer but more alarming risk is cancer. Long-standing perianal fistulas have been associated with fistula-associated anal adenocarcinoma, a rare malignancy that can develop in the chronically inflamed tissue of the fistula tract.15PubMed. Fistula-Associated Anal Adenocarcinoma: A 20-Year Single-Center Experience Both squamous cell carcinoma and adenocarcinoma have been reported in this context.16PubMed Central. Cancer in Anal Fistulas The absolute risk is low, but it increases with the duration of the fistula, which is one reason surgeons often recommend definitive treatment rather than indefinite watchful waiting.
Quality of Life and the Psychological Weight
The physical symptoms of a fistula only tell part of the story. Research on Crohn’s patients with perianal fistulas found that quality-of-life scores were similarly reduced whether or not the patient had undergone surgery, suggesting that having a fistula itself is the main burden rather than the treatment path chosen.17PubMed Central. Multi-national observational study to assess quality of life and treatment preferences in patients with Crohn’s perianal fistulas That finding cuts both ways: it means surgery does not automatically make life better, but it also means living with an active fistula carries a real quality-of-life cost that should not be dismissed.
A qualitative study exploring the lived experience of anal fistula found that participants described profound effects on identity, social life, and intimate relationships. The fistula created a sense of bodily defectiveness that complicated sexual closeness, with participants describing reduced desire due to pain and feeling “dirty.” For those seeking new relationships, the fistula was seen as a major obstacle. One participant explained that even with a supportive partner, intimacy remained difficult.18PLoS One. “You Cannot Be Yourself”: Identity disruption, stigma, and the lived experience of anal fistula These psychological dimensions rarely appear in clinical discussions, but they are often what drives people to seek treatment or, conversely, to avoid medical settings out of embarrassment.
For patients who do undergo fecal diversion (a stoma that reroutes stool away from the fistula), quality-of-life outcomes are mixed. One study found that diverted patients scored better on gastrointestinal symptom measures than undiverted patients, but broader quality-of-life scores showed little difference between the two groups.19PubMed. Long-term quality of life in patients with Crohn’s disease and perianal fistulas: influence of fecal diversion A stoma solves some problems and creates others, which is why it is typically reserved for cases where all other options have been exhausted.
Infants and Children Are a Special Case
If your child has been diagnosed with a perianal abscess or fistula, the picture looks much more hopeful than it does for adults. In infants, these conditions tend to be self-limiting. A real-world study of over 150 infants with perianal abscesses found that about 91 percent were cured conservatively without surgery, while only about 7 percent required an operation. A small number developed fistulas that were still under observation.20Scientific Reports. Natural course of perianal abscess in infants: a real-world study In another study focused specifically on infant fistulas, all 14 fistulas that developed healed without surgery, with symptoms lasting an average of about six months.21PubMed. The nonoperative management of fistula-in-ano
The natural history in infancy is different enough from adults that conservative management is now widely considered the first-choice approach. Older children, however, start to resemble the adult pattern, where spontaneous resolution becomes less likely and treatment decisions become more complex.22PubMed. Perianal Abscesses and Fistulas in Infants and Children
Practical Day-to-Day Management
For those living with a fistula by choice or by circumstance, daily management matters more than most clinical discussions acknowledge. Keeping the perianal area clean, dry, and protected from irritation is the baseline. Sitz baths, warm water soaks of the perineum, are a standard recommendation. Some practitioners have explored herbal sitz baths, and one case report described a protocol using neem-leaf sitz baths alongside dietary fiber optimization and adequate hydration, which resolved chronic symptoms including itching, abscess formation, and discharge.23Journal of International Health Sciences and Management. Breaking the Cycle of Recurrence: An Integrative Approach to Chronic Fistula-in-Ano Management This is a single case report and should not be mistaken for proven therapy, but the broader principles of warm soaks, soft stools, and anti-inflammatory dietary choices are well established in fistula care.
Stool consistency is particularly important. Hard stools increase pressure and trauma around the fistula, while loose stools can worsen irritation and drainage. The sweet spot is soft, formed stools achieved through adequate fiber and fluid intake. Some clinicians also recommend avoiding foods that promote inflammation, though the specific dietary triggers vary from person to person.24CellMed. A Case Study on the Improvement of Perianal Abscess and Fistula Using Ortho-Cellular Nutrition Therapy (OCNT) Wearing breathable undergarments and using absorbent pads can help manage drainage and reduce skin maceration. None of these measures will cure a fistula, but they can meaningfully reduce how much it interferes with your life.
Arteriovenous Fistulas in Dialysis Patients
It is worth noting that not all fistulas are problems to solve. An arteriovenous fistula surgically created in the arm is the preferred form of vascular access for people on long-term hemodialysis. Living with this kind of fistula is not only possible but necessary for treatment. The challenge here is not whether to have the fistula but how to keep it functioning properly, since blockages can develop over time and compromise dialysis access. Newer home monitoring technologies are being developed to help dialysis patients track fistula function between clinic visits. One system using a small wearable sensor and artificial-intelligence analysis demonstrated high accuracy in detecting blockages, and patients in pilot testing found it easy to use.25PubMed Central. An AIoT-Based Home Monitoring System for Arteriovenous Fistula Surveillance in Hemodialysis Patients: Development, Evaluation, and Clinical Potential For this group, the fistula is a lifeline, and keeping it healthy is a daily priority rather than a question of whether to repair it.