Karen Zaghiyan MD, FACS, FASCRS

 Board Certified Colorectal Surgeon

Robotic, Transanal, &
Virtually Scarless
Colorectal Surgery

Technical Precision.
Quality Care.

Karen Zaghiyan MD, FACS, FASCRS,
Colorectal Surgeon in Los Angeles

Dr. Zaghiyan is a board certified colorectal surgeon practicing minimally invasive colorectal surgery in Los Angeles. She is an expert in her field, offering surgical and non-surgical treatments for diseases of the colon, rectum, and anus. Her scope of practice ranges from simple office treatment for hemorrhoids to the most advanced minimally invasive approaches for cancer, inflammatory bowel disease, and pelvic floor disorders. Using robotic, laparoscopic, and natural orifice surgery, Dr. Zaghiyan strives to offer the least invasive approach for each condition in order to reduce pain, minimize surgical scars, and improve recovery. Do not wait to be evaluated. Schedule an appointment now for a private consultation with Dr. Zaghiyan in her Los Angeles office.

Robotic Colorectal Surgery

Robotic-assisted surgery is a new minimally invasive approach to laparoscopic colorectal surgery. With this innovative technology, colorectal surgeons can gain more vision and operate with better precision and control. With robotic-assisted laparoscopic surgery, the surgeon makes a few small incisions that are used to introduce a magnified, high-definition, 3D camera and special robotic instruments that bend and rotate similar to a human wrist into the abdominal cavity.   Read More.



Over 40% of individuals will experience hemorrhoid symptoms at some point in their life.


Hemorrhoids are part of everyone’s normal anatomy. These blood vessels in and around the lower rectum and anus can occasionally become engorged or enlarged similar to varicose veins in ones legs. Hemorrhoids can generally be managed with conservative measures such as a diet high in fiber (25-30 grams/day) and water (8-10 glasses/day). Dr. Zaghiyan also offers office-based treatments in her office in Los Angeles to help shrink the hemorrhoids. If office-based treatments are unsuccessful or if hemorrhoids are more severe, surgery may be necessary.


It is estimated that Inflammatory Bowel Disease diagnoses have increased by 50% from 1999 to 2015

Inflammatory Bowel Disease

Over 3 million American adults are estimated to have Inflammatory Bowel Disease or IBD.  IBD is the umbrella term for two conditions: Ulcerative Colitis (occurs in the colon and rectum) and Crohn’s Disease (occurs anywhere from mouth to anus). Both involve chronic inflammation within the gastrointestinal system and can cause mild to severe pain, bowel issues, weight loss and fatigue. Severe cases of IDB often require surgery to remove the diseased portions of bowel.


Each year 65% of colorectal cancers may be prevented by colonoscopy screening by your doctor.


Colonoscopy is a procedure to examine the inner lining of the colon and rectum, using a thin, long, flexible instrument with a camera at its’ tip while you are asleep. The purpose of a screening colonoscopy is to identify small polyps (precursors to cancer) and remove them in order to prevent the progression to cancer. Diagnostic colonoscopy is performed when patients are experiencing symptoms.

Dr. Zaghiyan performs colonoscopy with intravenous sedation, or “twilight sleep”. With newer drugs available, recovery from colonoscopy is quick and with little discomfort or nausea.

8737 Beverly Blvd #101
West Hollywood, CA 90048
Phone: 310-289-9224