What causes perianal fistula?

An anal fistula most often happens from an anal gland that has developed a pus-filled infection (abscess). A fistula can also happen with certain conditions, such as Crohn’s disease. Or it may happen after radiation therapy for cancer. Injury to the anal canal and surgery can also cause anal fistulas.

How long does a seton stay in for?

Incision care. You may have gauze and bandages over the opening of your fistula, and you may have a string coming from the fistula called a seton drain. The seton drain can help relieve symptoms and mark the fistula for doctors to fix later. It may stay in place for 6 weeks or longer.

What does a seton do for fistula?

A seton is a piece of surgical thread that’s left in the fistula for several weeks to keep it open. This allows it to drain and helps it heal, while avoiding the need to cut the sphincter muscles. Loose setons allow fistulas to drain, but do not cure them.

How painful is a seton?

It is normal to have pain for up to 1-2 weeks. Thereafter, you may notice discomfort with prolonged sitting and certain activities. Pain should not be constant or worsening. Placement of Setons may stimulate mucus production so the volume of drainage you are having may increase at first.

Can fistula heal on its own?

Fistula tracts must be treated because they will not heal on their own. There is a risk of developing cancer in the fistula tract if left untreated for a long period of time. Most fistulas are simple to treat.

How serious is a perianal fistula?

Anal fistulas can cause unpleasant symptoms, such as discomfort and skin irritation, and will not usually get better on their own. Surgery is recommended in most cases.

Do fistulas smell?

If you have a vesicovaginal fistula, you most likely have fluid leaking or flowing out of your vagina. If you have a rectovaginal, colovaginal, or enterovaginal fistula, you most likely have foul-smelling discharge or gas coming from your vagina.