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Sclerotherapy for Hemorrhoid Treatment



is an outpatient procedure to shrink an internal hemorrhoid.

How to prepare for sclerotherapy:

Your healthcare provider will talk to you about how to prepare for the procedure. You may need an enema before the procedure. An enema is medicine given to empty out your colon.

What will happen during sclerotherapy:

You do not need anesthesia or sedation for sclerotherapy. You should not feel pain during the procedure. Your healthcare provider will insert an anoscope into your anus. An anoscope is a small tube that helps your healthcare provider see inside your anus more clearly. He will insert a needle and inject your hemorrhoid with medicine.

What to expect after sclerotherapy:

You may feel a dull ache or pressure for up to 3 days after the procedure. You should have minimal or no bleeding. You may need to return to have more medicine injected into the hemorrhoid.

Risks of sclerotherapy:

You may bleed more than expected or develop an infection. You may have pain or swelling. Sclerotherapy may cause infertility in men. You may have an allergic reaction to the medicine. This may become life-threatening.

Call 911 for any of the following:

  • You suddenly feel lightheaded and short of breath.
  • Your throat feels swollen and you have trouble breathing.

Seek care immediately if:

  • Blood soaks through your underwear.
  • You have severe pain in your stomach or anus.

Contact your healthcare provider if:

  • You have nausea or are vomiting.
  • You have a fever.
  • Your skin is itchy, swollen, or you have a rash.
  • You have pain when you urinate or have a bowel movement.
  • You have trouble urinating or having a bowel movement.
  • You see blood in the toilet or in your bowel movement.
  • You have questions or concerns about your condition or care.


You may need the following:

  • Acetaminophen decreases pain and fever. It is available without a doctor's order. Ask how much to take and how often to take it. Follow directions. Read the labels of all other medicines you are using to see if they also contain acetaminophen, or ask your doctor or pharmacist. Acetaminophen can cause liver damage if not taken correctly. Do not use more than 4 grams (4,000 milligrams) total of acetaminophen in one day.
  • Take your medicine as directed. Contact your healthcare provider if you think your medicine is not helping or if you have side effects. Tell him or her if you are allergic to any medicine. Keep a list of the medicines, vitamins, and herbs you take. Include the amounts, and when and why you take them. Bring the list or the pill bottles to follow-up visits. Carry your medicine list with you in case of an emergency.

Take a warm sitz bath:

The warm water can help decrease pain and swelling. Fill a bathtub with 4 to 6 inches of warm water. You may also use a sitz bath pan that fits inside a toilet bowl. Sit in the sitz bath for 15 minutes. Do this 2 to 3 times a day, or as directed.

Prevent constipation:

Constipation can increase your risk for another hemorrhoid. It can also increase pressure in your anus and prevent the hemorrhoid from shrinking. Do the following to prevent constipation:

  • Eat a variety of high-fiber foods. High-fiber foods include fruits, vegetables, whole grains, and bran. You may need to take a fiber supplement.

  • Drink liquids as directed. You may need to drink more liquids than usual. Ask your healthcare provider how much liquid to drink each day and which liquids are best for you.
  • Exercise regularly. Ask about the best exercise plan for you.

Return to work:

You can usually return to work right away.

Follow up with your doctor as directed:

Write down your questions so you remember to ask them during your visits.

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The above information is an educational aid only. It is not intended as medical advice for individual conditions or treatments. Talk to your doctor, nurse or pharmacist before following any medical regimen to see if it is safe and effective for you.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.