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Mr Mark George

Mr Mark George


Consultant general and colorectal surgeon

Specialises in advanced and recurrent colorectal cancer. 


Mr Mark George was appointed as a consultant colorectal surgeon at Guy’s and St Thomas’ in 2003. He qualified from St Mary’s Hospital in 1991 before receiving his postgraduate, higher surgical training in the south east London region. He complete his research at the Royal Marsden Hospital and Institute of Cancer Research and was award his MS in surgery in 2002.


  • Haemorrhoids
  • Pilonidal sinuses
  • Hernias
  • Advanced and recurrent colorectal cancer

Procedures/ treatments

  • Colorectal resection
  • Colonoscopy
  • General surgical procedures

Special/ research interests

He is interested in laparoscopic colorectal surgery and is a specialist in the treatment of advanced colorectal cancer and is the regional anal cancer surgeon.

His other surgical expertise includes pilonidal sinus surgery, haemorrhoids, fistula and fissure surgery and treatment. Also, general surgery, including appendectomy, inguinal, umbilical, sports and abdominal hernia repairs.

Membership of professional bodies

  • Royal College of Surgeons
  • Royal Society of Medicine

Practice locations

Guy’s and St Thomas hospitals