Print this page
Back

What is an anal fissure?

• An anal fissure is a small tear in the lining of the anus (back passage) that can cause pain, bleeding and itching.

What causes anal fissures?

• There are a number of causes of anal fissure, including:
• :: Constipation – a hard, dry bowel movement;
• :: Diarrhoea
  

Treatment

• The injecting of anal fissure is carried out in the outpatient clinic.
• A small injection is given into the anal sphincter (opening of the back passage).
• This causes the muscles around the anus to relax and improving the blood supply so that the fissure can heal.

Common side effects of the Botox injection

• You may feel faint or light-headed after an injection of Botox, we advise that you stay in the clinic until this sensation has passed.
• Immediately after the injection, you may experience a stinging pain sensation and then numbness.
• You may experience some faecal incontinence after the injection. This is due to the muscles around the anus relaxing. This usually wears off after 2-3 months.
• Please talk to the consultant before the injection for more information.

Follow up

• You will be asked to come back to clinic in approximately 2-3 months for a check up appointment.

Prevention

• Avoid constipation. Keep stools soft by eating a high fibre diet (brown bread, cereals and fresh fruit and vegetables) and by drinking plenty of water. Aim for 6-8 glasses a day.
• Avoid excess tea and coffee.
• Always go to the toilet when you feel the urge.

Back