At a glance
Anal fistulas after childbirth are uncommon but well recognised. They can develop from perineal trauma during delivery or from a postnatal abscess. This guide covers how they present, the treatment considerations for new parents, and what to expect.
How it happens
Perineal injury pathway
During vaginal delivery, the perineum — the tissue between the vaginal opening and the anus — stretches significantly. In some cases, tearing extends into or near the anal area. A third-degree or fourth-degree tear involves the anal sphincter, and if healing is incomplete, a fistula tract can develop.
Abscess pathway
Perianal abscesses can develop in the postnatal period. These may be related to local trauma, changes in immune function, or the physical stresses of delivery. If an abscess drains spontaneously or is surgically drained, a fistula tract may form between the abscess cavity and the surface.
How it presents
People describe becoming aware of a fistula in the postnatal period through:
- Persistent discharge — pus or mucus from a small opening near the anus
- A lump or swelling that does not resolve — may be an abscess or the external opening of a fistula
- Pain — particularly if an abscess is present
- Symptoms that are different from normal postnatal recovery — something that does not seem right
The challenge is that the postnatal period involves many bodily changes, and symptoms near the perineum can be difficult to distinguish from normal healing. If something does not seem right, it is worth getting checked.
Treatment considerations
Timing
Treatment (usually surgery) does not need to happen immediately for a stable fistula. The timing can often be adjusted to allow for:
- Initial recovery from childbirth
- Establishment of breastfeeding if applicable
- Practical arrangements for childcare during surgery and recovery
An abscess, however, needs prompt treatment — it will not wait.
Breastfeeding
If surgery is needed while breastfeeding, discuss medication safety with both your surgeon and your midwife or lactation consultant. Anaesthesia and post-surgical pain relief can usually be managed with breastfeeding-compatible options, but this needs advance planning.
Recovery with a newborn
Recovery from fistula surgery typically requires rest, sitz baths, and wound care. With a newborn, this is logistically challenging. People describe:
- Needing a partner, family member, or friend to handle the baby during the first few days
- Combining wound care with feeds and nappy changes in a practical (if unglamorous) routine
- Accepting that recovery will be messier and less restful than it would be without a baby
- Asking for and accepting help
Emotional impact
A fistula on top of postnatal recovery adds significant emotional burden. People describe:
- Feeling that their body has failed them
- Guilt about not being able to care for their baby at full capacity
- Frustration at dealing with a surgical condition during what should be a bonding period
- Isolation — fistulas are private conditions, and the postnatal period already reduces social support
These feelings are valid and common. They do not mean you are not coping — they mean you are dealing with a lot.