Meet Dr. Marcus Oosenbrug, Colorectal Surgeon

Marcus Oosenbrug, MD, FRCSC, is a double-board-certified colorectal surgeon at MedStar Georgetown University Hospital, where he provides advanced surgical care for patients with benign and malignant diseases of the colon, rectum, and anus.

Dr. Oosenbrug treats the full spectrum of colorectal conditions, including colorectal cancer, inflammatory bowel disease (Crohn’s disease and ulcerative colitis), and diverticulitis; anorectal conditions, in particular hemorrhoids, fissures, fistulas, and anal dysplasia; and pelvic floor disorders such as rectal prolapse and fecal incontinence.

Trained in minimally invasive techniques, including laparoscopic and robotic approaches, he strives to help patients recover more quickly and with less pain, while preserving normal function whenever possible.

Dr. Oosenbrug's clinical interests include complex inflammatory bowel disease and sphincter-preserving procedures such as J-pouch surgery. He is also passionate about LGBTQ+ health, and the early detection and treatment of anal dysplasia using high-resolution anoscopy (HRA), a proven method for reducing the risk of anal cancer in vulnerable populations. He is also trained in sacral nerve stimulation therapy (MedTronic Interstim™) for fecal incontinence.

For more information: https://www.medstarhealth.org/doctors/marcus-oosenbrug-md

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