At a glance
Perianal abscesses can occur in children of any age, but they are particularly common in infants under twelve months. They present as a painful, swollen lump near the anus — often red, warm to the touch, and tender. For parents and carers, this can be alarming, especially the first time it happens.
The good news is that perianal abscesses in children are generally well understood and treatable. Most need to be drained, recovery is usually quick, and the majority of children do very well.
This guide covers what parents commonly need to know — how these abscesses present in children, what treatment looks like, and when to seek urgent care.
How perianal abscesses present in children
The signs in children are similar to those in adults, but recognising them depends on what your child can communicate.
In infants and toddlers, you may notice:
- A red, swollen area near the anus
- Your child crying or becoming distressed during nappy changes
- Reluctance to sit or be placed in a sitting position
- Fever or irritability that seems out of proportion
- A visible lump that may develop a point or begin to drain on its own
In older children, they may be able to tell you about pain, especially during or after bowel movements. They may resist sitting, avoid the toilet, or hold stool because of discomfort.
Why they happen
Perianal abscesses form when one of the small glands just inside the anus becomes blocked and infected. In children, this usually happens without any identifiable trigger. It is not caused by poor hygiene, and parents should not feel that they have done something wrong.
In infants, the glands are still developing, which may explain why this age group is particularly susceptible. Boys are affected more frequently than girls during infancy, though the reasons for this are not entirely clear.
Recurrent abscesses — particularly in young children — may occasionally prompt a clinician to investigate for underlying conditions, but in most cases no further cause is found.
Treatment
Drainage
Most perianal abscesses in children need to be drained. This means a clinician makes a small opening to release the pus. In some infants, this can be done with local anaesthetic. In older or more anxious children, a brief general anaesthetic is typical.
The procedure itself is usually quick. Many families describe the build-up as worse than the actual event. Children often show rapid improvement within hours of drainage.
After drainage
- Warm baths — sitting in warm water several times a day helps keep the area clean and promotes healing
- Keeping stools soft — adequate fluids, fruit, and fibre-rich foods reduce pain during bowel movements
- Wound care — the drainage site is usually left open to heal from the inside out; your care team will explain what to expect
- Pain relief — appropriate pain medication as advised by your child’s care team
Most children are back to normal activities within one to two weeks.
When antibiotics are used
Antibiotics alone do not treat an abscess — the collection of pus needs to be physically drained. However, antibiotics may be prescribed alongside drainage if there are signs of surrounding infection, or if your child has other health considerations.
The fistula question
One of the most common concerns parents have after their child’s abscess has been treated is whether it will lead to a fistula. A fistula is an abnormal tunnel that can form between the inside of the anus and the skin where the abscess drained.
In children, fistulas do occur after abscesses — estimates vary, but it is a well-recognised possibility. The important thing to know is that many childhood fistulas, particularly in infants, resolve on their own over time without surgery. This is different from adult fistulas, which rarely heal spontaneously.
If a fistula does develop and persists, your child’s surgical team will discuss options. The approach in children tends to be more conservative and more patient than in adults, because of the potential for natural resolution.
Recurrence
Some children experience more than one abscess. This can be distressing for families who hoped the first episode was a one-off. Recurrence does not necessarily mean something more serious is going on — it can simply reflect the anatomy and development of the glands in that area.
If abscesses keep recurring, your child’s team may recommend further investigation or a different approach to management. This is a conversation worth having with a paediatric surgeon who has experience with this specific issue.
When to seek urgent care
Perianal abscesses in children can worsen quickly. Seek same-day medical attention if:
- Your child has a fever alongside a swollen, painful area near the anus
- The swelling is increasing rapidly
- Your child is refusing to eat or drink
- There are red streaks spreading from the area
- The area has been draining pus but your child is not improving
- You are unsure whether what you are seeing needs attention — it is always better to have it checked
Supporting your child through it
Children pick up on their parents’ anxiety. Staying calm and matter-of-fact helps. This is a common, treatable condition. The discomfort is temporary. Recovery is usually quick.
Practical things that help:
- Warm baths framed as special relaxing time rather than medical treatment
- Loose, comfortable clothing
- Favourite activities as distraction during recovery
- Being honest in age-appropriate language about what is happening and why
- Following up as scheduled, even when things seem better