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Having Rectal Surgery

During rectal surgery, the rectum is surgically taken out. You will be given instructions on how to get ready for your surgery. Follow these instructions carefully. Ask questions if something is unclear. You will likely be admitted to the hospital on the day of your surgery. In certain cases, you may need to be at the hospital the day before.

Preparing a few weeks before surgery

To get ready for the surgery: 

  • Have a thorough physical exam as instructed by your healthcare provider.

  • Ask about medicines. Tell your surgeon about all medicines you take, and ask whether you should stop taking them. This includes:

    • Prescription medicines

    • Aspirin

    • Nonsteroidal anti-inflammatory drugs (NSAIDs)

    • Blood thinners such as warfarin

    • Any over-the-counter medicines

    • Herbs or supplements

  • Quit smoking. Smoking raises surgery risks. It also slows healing.

Preparing the day before surgery

Follow any directions you are given for taking medicines and for not eating or drinking before surgery. Do a bowel prep if instructed.

The day of surgery

When you arrive at the hospital, you will be asked fill out certain forms. You will then change into a gown. An IV (intravenous) line will be put into your arm. This gives fluids and medicines. You’ll meet with your anesthesiologist or nurse anesthetist to talk about the medicine that helps you sleep during surgery. Ask any questions you have at this time. Before surgery starts, you’ll be given general anesthesia to put you into a deep sleep. A soft tube called a catheter may be placed into your bladder to drain urine.

During your surgery

What to expect during your surgery:

  • Your surgery may be done through one cut (incision) in your abdomen. This is called open surgery. The cut may be several inches long. Or the surgery may be done laparoscopically. This means the surgeon makes several small cuts. A laparoscope (a thin telescope-like tube) is then placed into one of the small cuts. This lets your healthcare provider view the surgery on a video monitor and operate through the small cuts.

  • Part or all of the rectum is resected (removed). Part or all of the sigmoid colon may also be taken out. The anus may be taken out as well.

  • If some of the rectum or anus remains, the colon may be reconnected to it. This is called an anastomosis.

  • If the rectum and anus are removed, a colostomy is done. This makes a new opening in the belly (abdomen) so waste can leave the body.

  • Once surgery is done, you’ll be taken to a recovery room.

Types of rectal resection

Below are the 2 types of rectal surgery. Your healthcare provider can talk about these with you.

Low anterior resection

Low anterior resection. The sigmoid colon and a portion of the rectum are removed. The descending colon is reconnected to the remaining rectum.

Abdominal perineal resection

Abdominal perineal resection. Part or all of the sigmoid colon and the entire rectum and anus are removed. A colostomy is then performed.

If you have a colostomy

During a colostomy, part of the colon is connected to an opening in the belly wall. This new opening is called a stoma. This is where stool now leaves the body. Stool passes through the stoma into a special bag or appliance. Your healthcare team will help you learn how to care for your stoma. Having a colostomy can seem overwhelming. But you will get lots of support. In time, caring for your stoma will become part of your daily routine.

Risks and possible complications

Risks and possible complications of rectal surgery are:

  • Infection

  • Injury to nearby organs, such as the kidneys

  • Leaking or separation of anastomosis

  • Blood clots

  • Internal bleeding 

  • Abscess formation

  • Adhesions or bowel obstruction 

  • Risks of anesthesia

Online Medical Reviewer: Jen Lehrer MD
Online Medical Reviewer: Kenny Turley PA-C
Online Medical Reviewer: L Renee Watson MSN RN
Date Last Reviewed: 6/1/2019
© 2000-2021 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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