
Botulinum toxin is not a routine treatment for haemorrhoids in the UK. Haemorrhoids, also called piles, are swollen blood vessels inside or around the anus, and standard treatment focuses on relieving symptoms, reducing constipation and, when necessary, treating the haemorrhoids directly.
The confusion often arises because botulinum toxin may be used in specialist colorectal care for chronic anal fissure, a different condition involving a tear in the lining of the anus and increased anal sphincter tension.
For a broader explanation of botulinum toxin and how it affects muscles, see our main Botox guide.
Haemorrhoids, or piles, are swollen blood vessels inside or around the anus.
Possible symptoms include:
bright-red bleeding after a bowel movement;
itching around the anus;
soreness or pain;
lumps around the anus;
mucus after passing stool;
feeling as though you still need to open your bowels.
Piles may be internal or external, and symptoms vary considerably.
Constipation and straining can make haemorrhoids more likely or worsen symptoms. Pregnancy, heavy lifting, increasing age and being overweight are also associated with a greater likelihood of developing piles.
Rectal bleeding should not automatically be assumed to come from haemorrhoids. If bleeding is new, persistent or concerning, seek medical assessment.

The most important distinction is between haemorrhoids and anal fissures.
Haemorrhoids are enlarged or swollen blood vessels in and around the anus.
An anal fissure is a small tear or ulcer in the lining of the anus. It commonly causes sharp pain during a bowel movement followed by burning pain afterwards, sometimes with bright-red bleeding.
For chronic anal fissure, botulinum toxin type A may sometimes be injected into the anal sphincter to temporarily reduce muscle tension.
The aim is to reduce sphincter spasm and allow the fissure an opportunity to heal.
This is off-label use in the UK and is not the same as injecting Botox to shrink or remove haemorrhoids.
NICE's evidence review found that botulinum toxin for chronic anal fissure has variable effectiveness and is less effective at healing fissures than lateral internal sphincterotomy in the evidence it reviewed.
Because botulinum toxin is a prescription medicine and this use is off-label, treatment should only follow appropriate specialist assessment and informed discussion.
For broader information about potential botulinum toxin problems, see Botox complications and unwanted effects.
Symptoms can overlap, particularly pain and bright-red bleeding. Haemorrhoids commonly cause itching, lumps, soreness or bleeding, while an anal fissure often causes sharp pain during a bowel movement followed by burning pain afterwards. A healthcare professional may need to examine the area to determine the cause.
Botulinum toxin is not a standard treatment used to directly shrink haemorrhoids. Standard haemorrhoid treatments target the swollen blood vessels themselves or address symptoms and contributing factors.
In selected cases of chronic anal fissure, botulinum toxin may be injected into the anal sphincter to reduce muscle tension temporarily. This is different from treating haemorrhoids and is an off-label use in the UK.
Potential problems reported with botulinum toxin treatment for chronic anal fissure include temporary changes in continence. Botulinum toxin medicines also carry a rare risk of effects spreading beyond the injection area. A specialist should explain relevant benefits, limitations and risks before treatment.
Seek medical advice if rectal bleeding is persistent, unexplained or worrying. Get urgent help if there is heavy or non-stop bleeding, large blood clots, severe pain with significant illness, or other concerning symptoms.
Botulinum toxin is not a routine UK treatment for haemorrhoids. It is more commonly discussed in colorectal care for chronic anal fissure, which is a different condition.
Botulinum toxin is not normally used to directly shrink or remove haemorrhoids. Treatments such as banding, sclerotherapy, infrared coagulation and surgery target haemorrhoids more directly.
Botulinum toxin may sometimes be used off-label for chronic anal fissure to reduce tension in the anal sphincter. Anal fissures can cause severe pain, particularly during and after bowel movements.
No. Haemorrhoids are swollen blood vessels, while an anal fissure is a tear in the lining of the anus. They can produce some similar symptoms, including bright-red bleeding.
No. NICE describes botulinum toxin type A treatment for chronic anal fissure as off-label in the UK.
Treatment may include dietary and bowel-habit changes, pharmacy treatments and, when necessary, procedures such as banding, sclerotherapy, electrotherapy, infrared coagulation or surgery.
Seek medical advice if symptoms are getting worse, do not improve with self-care, keep returning or if you notice a new change around the anus. Rectal bleeding should also be assessed when its cause is uncertain.
Seek emergency help for non-stop bleeding, a large amount of blood or large blood clots. Severe anal pain with significant illness may also need urgent assessment.
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