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Department of general surgery and proctology

Dr. med. Stefan Muhlbauer
general surgery, abdominal surgery and proctology

About the department

The department of general surgery and proctology at Beta Clinic Bonn aims to provide top-class surgical care for its patients. Experienced surgeons use gentle and minimally invasive procedures such as laparoscopy in their surgical approaches, even for small or large intestine diseases. If possible, cosmetically-preserving single incision laparoscopic surgery (SILS) is used. The operation is performed through the single access in the navel. Particularly gentle procedures are also used to treat rectal diseases, such as haemorrhoids. It is possible by means of the latest equipment installed in the operating rooms. The team of doctors is always available for consulting and supporting their patients through the journey of diagnosis and treatment. The department is equipped with modern wards and operating rooms to ensure safe and accurate medical performance.

The department specializes in surgery of the abdominal organs, the abdominal wall, the thyroid gland, and coloproctology (diagnosis and treatment of colon and rectal diseases, conservative and surgical pelvic floor treatment for faecal incontinence and acquired constipation) as well as in case of obesity. Conservative (non-surgical) options are also offered.

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Treatment and diagnostic focus of the department

Diagnostic and conservative range of services:

  • Endoscopy
  • Proctology diagnostics
  • Non-surgical haemorrhoids treatment
  • Diagnosis and therapy of chronic constipation and incontinence
  • Diagnosis and therapy of overweight (obesity)
  • Nutritional medicine
  • Metabolic syndrome
  • Second opinion/consultation before abdominal surgery

Surgical range of services:

  • Hernia surgery (surgery of inguinal, umbilical, abdominal wall, and incisional hernias)
  • Gallbladder and appendix removal (e.g. single-port surgical procedure/SILS technique)
  • Thyroid surgery
  • Surgical treatment of haemorrhoids, anal fissures, anal abscesses and fistulas, minimally invasive and plastic treatment of coccyx fistulas (Bascom's pit-pick operation)
  • Surgery of inflammatory and tumorous diseases of the small and large intestine (e.g. sigmoid diverticulitis), rectoceles, internal and external rectal prolapse
  • Sacral nerve stimulation
  • Port implantation (e.g. for chemotherapy)
  • Obesity Surgery: Omega Loop Procedure and Gastric Sleeve Resection
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Doctor profile


  • Studied human medicine at the University of Bonn
  • Practical year at the St. Marien hospital in Bonn
  • Specialist in general surgery, 2004


  • 2006, Senior consultant in general and visceral surgery. 
  • 2010, Head of coloproctology department at the St. Josef Hospital in Bonn

Awards, memberships, publications

  • Member of the Association of German Surgeons (BDC) 
  • Member of the German Society for General and Visceral Surgery (DGAV)
  • Attends the international coloproctology congress in Munich every year
  • Author of 13 publications
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