Hearing that you need part of your colon removed can feel overwhelming. Questions come quickly: How serious is this? How long will I be in the hospital? Will I be able to get back to my life? Understanding the procedure, and the technology that may be used to perform it, can turn uncertainty into a clearer plan.
What Is a Robotic Colon Resection?
A colon resection, also called a colectomy, is an operation to remove a diseased section of the large intestine. The surgeon then reconnects the healthy ends, or in some cases creates an opening called an ostomy. In a robotic approach, the surgeon operates through several small incisions using instruments attached to robotic arms. The surgeon sits at a console, viewing a magnified three-dimensional image and controlling every movement of the instruments. The robot does not act on its own; it translates the surgeon's hand motions into precise, small movements inside the abdomen.
Who May Need This Surgery?
Colon resection is recommended for a range of conditions. Common reasons include:
- Colon cancer or large polyps that cannot be removed during colonoscopy
- Diverticular disease with repeated infections, complications, or narrowing
- Inflammatory bowel disease that no longer responds to medication
- Bowel obstruction or injury
- Severe bleeding from the colon
Not everyone with these conditions needs surgery, and not every patient is a candidate for a robotic approach. The decision depends on your diagnosis, overall health, previous operations, and anatomy.
How Robotic Surgery Compares With Other Approaches
Traditional open surgery uses one long incision. Laparoscopic surgery uses small incisions with long, handheld instruments and a camera. Robotic surgery is a form of minimally invasive surgery that builds on the laparoscopic method, adding wristed instruments and enhanced visualization.
What Does the Research Show?
Studies of minimally invasive colon surgery generally show less pain, smaller scars, and shorter hospital stays than open surgery, with comparable cancer outcomes when performed appropriately. Research comparing robotic and laparoscopic colon resection has found similar results in many measures, with some studies suggesting a lower chance of needing to convert to open surgery with the robotic approach, particularly in complex cases or in the pelvis. Evidence continues to evolve, and the best option varies from person to person. A frank conversation with your surgeon about their experience and your specific situation matters more than the technology alone.
What to Expect Before and After
Before surgery, you may have blood work, imaging, and instructions about diet, bowel preparation, and medications. Many hospitals use enhanced recovery programs that encourage early walking, early eating, and careful pain control. After surgery, you can expect some soreness, gas pain, and fatigue. Bowel function returns gradually. Your care team will advise you on lifting restrictions, wound care, and warning signs such as fever, worsening abdominal pain, vomiting, or redness at an incision.
Practical Tips for Patients
- Bring a written list of your medications, allergies, and past surgeries to every visit.
- Ask which approach (robotic, laparoscopic, or open) fits your specific diagnosis and why.
- Ask what recovery typically involves, including eating, walking, and activity limits.
- Arrange help at home for the first days after you leave the hospital.
- Follow bowel preparation and fasting instructions exactly as given.
Take the Next Step
If you have been told you may need a colon resection, or you are living with symptoms such as changes in bowel habits, blood in the stool, or ongoing abdominal pain, do not wait to seek an evaluation. The practice of Aldo Gamarra, MD is located at 1658 West Ave J., Lancaster, CA 93534. You can call (661) 579-6088 or use our contact page to ask about next steps.

