Injection Treatment for Piles: What Patients Should Know

Injection treatment — properly called sclerotherapy — is one of the simplest procedures available for piles. It takes a few minutes, needs no anaesthesia in most cases, and you walk out afterwards. It is also frequently offered to people it will not help, so the useful question is not "does it work" but "does it work for the kind of piles I have".

First, the thing that matters more than any treatment

Never assume rectal bleeding is piles. Piles are common, which is exactly why the assumption is dangerous — colorectal cancer, polyps, inflammatory bowel disease and other conditions bleed in much the same way, and every year people are treated for haemorrhoids while something else goes undiagnosed.

Insist on proper evaluation, including a colonoscopy where indicated, if you have any of these:

• You are over 40, or have a family history of colorectal cancer
• A change in bowel habit lasting more than a few weeks
• Dark blood, or blood mixed through the stool rather than bright red on the paper or surface
• Unexplained weight loss, anaemia, or persistent tiredness
• Bleeding that continues despite treatment

A good surgeon will want to be certain of the diagnosis before injecting anything.

How piles are graded, and why the grade decides the treatment

• Grade I — bleed, but do not come out
• Grade II — come out on straining, go back by themselves
• Grade III — come out and must be pushed back manually
• Grade IV — remain outside and cannot be pushed back

Sclerotherapy is designed for grade I and early grade II internal piles, particularly where bleeding is the main complaint. It is not effective for significant prolapse, and it does nothing at all for external piles or skin tags, which is a common source of disappointment.

What actually happens

A chemical solution is injected into the tissue above the pile, not into the pile itself. It causes controlled scarring that shrinks the blood supply and fixes the tissue back in place, so the bleeding stops.

The injection site sits above the dentate line, where the bowel lining has no pain-sensing nerves — which is why the procedure is usually painless. Most people feel a sense of fullness or a dull pressure rather than sharp pain. It is done through a proctoscope in the clinic, takes a few minutes, and you can normally return to work the same day.

Afterwards

• Mild fullness or aching for a day or two
• A small amount of spotting is normal
• No preparation, no fasting, no recovery period in most cases
• More than one session is sometimes required, spaced a few weeks apart

How well it works, honestly

For early bleeding piles, sclerotherapy controls symptoms well in the short to medium term. What it does not do is permanently cure the underlying tendency — recurrence over a few years is common, and repeat treatment or a different procedure may eventually be needed. Anyone presenting it as a one-off permanent fix is overselling it.

Rubber band ligation is an alternative day-care option, generally more effective for grade II and some grade III piles, though slightly more uncomfortable afterwards. For higher grades, procedures such as haemorrhoidal artery ligation, stapled haemorrhoidopexy, laser treatment or conventional excision are considered. The right choice depends on grade, symptoms and what you have already tried.

When it is not suitable

• Grade III or IV piles with significant prolapse
• External piles, skin tags, or a thrombosed (clotted) external pile
• Active anal infection, abscess or fistula
• Inflammatory bowel disease affecting the rectum
• A significantly weakened immune system
• Pregnancy — conservative treatment is preferred, and piles often settle after delivery
• Blood-thinning medication needs discussion first, though it is less of an obstacle here than for surgery

Risks

Complications are uncommon and usually minor: some bleeding, temporary discomfort, or an ulcer at the injection site. If the injection is placed too low, it causes genuine pain. Rare but recognised problems include urinary symptoms or prostatic irritation in men, and — very rarely — serious pelvic infection.

Contact your surgeon urgently if you develop fever, severe or increasing pain, difficulty passing urine, or heavy bleeding after the procedure.

What determines the long-term result

This is the part patients skip, and it matters more than which procedure you choose. Piles recur when the pressures that created them continue.

• Fibre and fluids — enough that stool is soft and passes without effort. This is the foundation of every treatment plan.
• Do not strain. If nothing is happening within a minute or two, get up and come back later.
• Do not sit on the toilet for long periods. Taking a phone into the bathroom is one of the commonest modern causes of prolonged straining and congestion.
• Go when you need to — repeatedly postponing hardens stool
• Stay active, and avoid long uninterrupted sitting

If you have bleeding that has not been properly evaluated, or piles that keep returning after treatment, the surgical gastroenterology team at Iswarya Hospital can confirm the diagnosis and match the procedure to the grade rather than to habit.

This article provides general health information and is not a substitute for personal medical advice. Rectal bleeding always warrants assessment by a doctor — please do not self-diagnose piles.