Karen Zaghiyan M.D., F.A.C.S.

 Board Certified Colorectal Surgeon

Robotic, Transanal, &
Virtually Scarless
Colorectal Surgery

Technical Precision.
Quality Care.

Karen Zaghiyan MD, FACS, FASCRS,
Colorectal Surgeon

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 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.

What are the symptoms of hemorrhoids?

Office procedures for hemorrhoids

Surgical options for hemorrhoids



8% of Americans have bowel control problems, or fecal incontinence , a treatable condition.

Bowel Control Problems

Bowel control problems (fecal incontinence) is the inability to control the passage of gas or stool. It can be mild with impaired control of gas passage to severe loss of control over liquid or formed stool. This is a common problem among adults, however, many individuals are too ashamed to talk about their problem or seek medical advice. There are many causes of bowel incontinence. Fecal incontinence can generally be classified into 3 categories: Anal sphincter damage, nerve problems, and overflow incontinence.

How can incontinence be treated?

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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.

What are the benefits of colonoscopy?

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