Mr Pasha Nisar FRCS, is a Consultant Colorectal and Laparoscopic (keyhole) surgeon at Ashford & St Peter’s NHS Trust appointed in 2011. He is lead for colorectal cancer and inflammatory bowel disease surgery at the Trust. He performed the first single incision ‘scarless’ operation for cancer and the first artificial sphincter implant at the Trust. He established the department's research programme with Royal Holloway, University of London and supervises PhD studies on genetic biomarkers for colon cancer. He is co-ordinating development of robotic surgery and is clinical lead for endoscopy at Princess Margaret Hospital.

Mr Nisar grew up in Sunningdale and attended King’s College School, Wimbledon. He read medicine at Trinity College, Cambridge University and Addenbrooke’s. He was awarded a doctorate from The University of Nottingham for his thesis at the Academic Surgical Unit. Specialist surgical training was completed in the London Deanery including St George’s, Frimley Park, Royal Surrey Hospitals. Mr Nisar spent one year at the Cleveland Clinic USA, a world renowned centre of excellence, at the Department of Digestive Disease training under Professor Vic Fazio. Mr Nisar is a high volume surgeon with expertise in all aspects of colorectal disease, hernia repair and endoscopy. His focus is on achieving the best clinical outcomes and excellent results for patients. He is an international conference speaker with over 50 articles and book chapters published. Mr Nisar was voted Global Health and Pharma Colorectal Surgeon of the Year 2019. 

Expert areas: 

Groin and abdominal hernia surgery, laparoscopic and mesh free repair 

Advanced colonoscopy, EMR polypectomy, endoscopy, bowel cancer screening, screening for colitis

Keyhole surgery for bowel cancer and diverticular disease

Surgery for stage IV endometriosis

Laparoscopic rectopexy for prolapse

Sacral neuromodulation for faecal incontinence

Surgery for Crohn’s and colitis including ileo-anal pouch

Treatment for haemorrhoids, anal pain, fistula and fissures

Rafaelo, HALO surgery for piles and botox injections for pain

Diseases, Medical Tests and Treatments

• Abdominal reconstruction  
• Abdominoperineal Resection  
• Abscess Drainage  
• Anal Fissure Surgery  
• Anterior Resection of Rectum  
• Appendicectomy  
• Bowel Diversion Surgery  
• Bowel Surgery (Colectomy)  
• Colonoscopy  
• Colorectal Cancer Surgery  
• Endoscopic Polypectomy  
• Endoscopy  
• Epigastric Hernia Repair  
• Femoral Hernia Repair  
• Gastroscopy  
• Haemorrhoid Artery Ligation (HALO)  
• Haemorrhoid Banding  
• Haemorrhoidectomy  
• Hernia Repair (Keyhole)  
• Ileoanal Pouch Formation  
• Ileostomy and Colostomy Formation  
• Incisional Hernia Repair  
• Inguinal Hernia Repair  
• Laparoscopy  
• Laying Open of Fistula  
• Left Hemicolectomy  
• Lipoma Removal  
• Open Hernia Repair  
• Parastomal Hernia Repair  
• Pilonidal Sinus Surgery  
• Rectal Prolpse Repair  
• Removal Of Rectum And Colon (Proctocolectomy)  
• Right Hemicolectomy  
• Sacral Neuromodulation  
• Skin Lesion Removal  
• Stoma Revision  
• Subtotal Colectomy  
• Surgery for Crohn's and Colitis  
• Surgery for Diverticular Disease  
• Umbilical Hernia Repair 
• Abdominal Pain
• Anal Cancer
• Anal Fissure
• Anal Fistula
• Anal Pain
• Appendicitis
• Bowel Cancer
• Bowel Cancer Screening
• Bowel Obstruction
• Chronic Diarrhoea
• Colitis (Ulcerative Colitis)
• Colon Cancer
• Colonoscopy
• Colorectal Disease
• Complex Abdominal Hernia
• Crohn’s Disease
• Diverticular Disease
• Diverticulitis
• Epigastric hernia
• Faecal Incontinence
• Femoral Hernia
• Haemorrhoids
• Incisional Hernia
• Inflammatory Bowel Disease
• Inguinal Hernia
• Irritable Bowel Syndrome
• Laparoscopic (keyhole) Surgery
• Lumps and Bumps
• Perianal Abscess
• Pilonidal Sinus
• Rectal Bleeding
• Rectal Cancer
• Rectal Prolapse
• Skin Lesions
• Stomas
• Umbilical Hernia