Clinical expertise

Mr Alexis Schizas specialises in the treatment of and surgery for colorectal cancer, and pelvic floor imaging.

He regularly treats patients with conditions such as:

  • rectal bleeding
  • haemorrhoids
  • anal fistula/fissure
  • faecal incontinence
  • colorectal disease
  • anal cancer
  • rectal prolapse

He performs treatments such as:

  • inguinal hernia repair
  • umbilical hernia repair
  • robotic-assisted colorectal surgery
  • lower gastrointestinal (GI) surgery
  • colonoscopy
  • laparoscopic colorectal surgery
  • pelvic floor pathology (bowel incontinence, defaecatory difficulties and prolapse)


Mr Alexis Schizas was appointed as a consultant colorectal surgeon at Guy’s and St Thomas’ hospitals in 2011.

After qualifying from Guy’s and St Thomas’ hospitals in 1999, he undertook his higher surgical training in the South East London. His research was performed at St Thomas’ Hospital and was awarded his MD in 2011.

He was also the laparoscopic and enhanced recovery colorectal lead for the London Cancer Alliance. He is currently chair of the South East London ACN for colorectal cancer and Service Lead for Colorectal and Emergency General Surgery at Guy’s and St Thomas’ Hospitals NHS Foundation Trust.


Mr Alexis Schizas strives for the highest quality of patient care, teaching, presenting and publishing, locally, nationally and internationally.

In 2015, he was elected as the colorectal representative to the Standardising Steering Committee and in 2016 onto the Publications and Communications Committee for the International Continence Society.

His research interests include pelvic floor imaging, physiology, treatment and surgery of colorectal cancer.