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London Digestive Centre


Make an appointment

020 3131 4138

41 Welbeck Street



Who we are

Mr Alastair Windsor provides the highest standard of surgical care with exceptional clinical, diagnostic and technical expertise. Our patients can benefit from a full range of surgical techniques and technical innovations in diagnosis, surgery and patient care. We provide a comprehensive service that includes inpatient and outpatient care for all colorectal conditions including advanced IBD, colorectal cancer and minimally invasive techniques. Our specialists work in collaboration across the London Digestive Centre and can deal with extremely complex colorectal disease.

Colorectal surgery

Our renowned colorectal team at the London Digestive Surgery specialises in treating a wide range of colorectal conditions, from bowel cancer to Crohn's disease, advanced inflammatory bowel disease (IBD), colorectal cancer, and proctology, using the most advanced surgical techniques. 

  • Endoscopy

    Need to know

    An endoscopy is a procedure to examine inside your body using an instrument called an endoscope. An endoscope is a long, thin flexible tube with a light and video camera at the end. An endoscopy can be used as a diagnostic procedure to investigate symptoms or to carry out some types of procedures or...

  • Anal fistula surgery

    Need to know

    Anal fistulas are small tunnels that can develop between the end of your rectum and the skin near your anus. Fistulas can get better on their own. But in other cases, surgery may be the only way to get rid of them. We specialise in various techniques for treating anal fistulas, including: - Fistulotomy....

  • Inflammatory bowel disease

    Need to know

    Inflammatory bowel disease refers to inflammation of the gut. It includes the conditions ulcerative colitis and Crohn's disease. Symptoms to be aware of are weight loss and diarrhoea. Whilst anyone can be affected, it usually occurs between the ages of 15 to 40. Your consultant gastroenterologist can...

  • Colorectal and Bowel cancer

    Need to know

  • Crohns disease

    Need to know

    Crohn's disease is an inflammation of the gastrointestinal (digestive) tract. It's a type of inflammatory bowel disease (IBD), like ulcerative colitis (UC). Unlike ulcerative colitis, Crohn's can affect any part of your digestive tract, from your mouth to your back passage. It's fairly common, affecting...

  • Ulcerative colitis

    Need to know

    Ulcerative colitis (UC) is an inflammation of part of the gastrointestinal (digestive) tract, usually beginning in the rectum (where faeces is stored) and colon (large intestine). It's one of the two main types of inflammatory bowel disease (the other is Crohn's). UC tends to start in young people and...

  • Diverticular disease

    Need to know

    Divertular disease is a digestive condition where small bulges (diverticula) form in the lining of your intestine and lead to problems, like stomach pain. The older you get, the weaker your intestine becomes. As a result, harder poo can irritate the lining of your intestine, causing diverticula to form....

  • Delormes procedure

    Need to know

    A rectal prolapse is when the lower part of the bowel (rectum) becomes weakened and part of the wall of the rectum drops through the anus. Depending on the severity of the condition, you may require surgery. Delorme's procedure is a minimally invasive operation to repair your rectum.

  • Faecal incontinence

    Need to know

    Faecal incontinence is a very distressing condition that tends to effect the elderly. However, it can affect younger patients and in particular women following difficult obstetric deliveries. LDS can diagnose and treat the condition.

  • Irritable bowel syndrome

    Need to know

    IBS is a disorder of the way the muscles and nerves in the gut work. It is called a ‘functional gut disorder’ because it is a problem with gut function rather than the structure of the bowel. The condition affects up to one in five people at some point in their lives. Although it is often...

  • Surgery for piles haemorrhoids

    Need to know

    Haemorrhoids (piles) are swellings in or around the anus that contain large blood vessels. They can be uncomfortable and itchy and sometimes bleed. Most piles don't need surgery but there are a few different ways you can have them surgically removed, including banding and stapling.

Health Fact vs Fiction podcast episode 6

Listen: Alastair Windsor gets to the guts of gluten-free

Renowned colorectal consultant, Alastair Windsor, talks everything gluten-free with Anna Richardson. Is it all it's cracked up to be? Can stress-busting techniques help keep your guts happy? All will be answered in this entertaining, easy-to-swallow podcast episode. 


Your consultant

Alastair Windsor

Mr Alastair Windsor

Colorectal Surgeon

Our location

The London Digestive Surgery is part of the London Digestive Centre near Harley Street.

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