Surgery tailored to your needs.

Recognised by all major health insurers

Meet Mr Alistair Slesser

I'm a Consultant Colorectal and General Surgeon. My NHS practice is based at Hillingdon and Mount Vernon hospitals. I am an active member of a busy colorectal and general surgery unit where my main interest is in performing major cancer surgery. In addition, I manage all colorectal conditions including diverticular disease, inflammation of the colon, rectal prolapse, piles, fistula, pilonidal sinus disease, anal fissure and rectal bleeding. I also regularly perform colonoscopies. I cover general emergency surgery and regularly perform surgery for gallstone disease, all types of hernias including complex incisional hernias and skin lesions. 


Practice Areas



A colonoscopy is one of the best ways to exclude any major bowel issues. If you have any new or worrying bowel symptoms such as a change in bowel habit or bleeding make an appointment to discuss arranging a prompt colonoscopy.

Bowel Resections

Expert in performing major bowel resections for colorectal cancer, diverticular disease and inflammatory bowel disease using minimally invasive techniques. If you are considering such surgery I will tailor the best surgical approach for you.


Pilonidal sinus

Proctology issues can be very troubling. I practice multiple techniques for all proctology conditions. At your appointment I will thoroughly assess your problem and I will be able to offer you a definitive surgical solution. 


Day surgery

If you suspect that you have gallstones I will organise investigations to confirm the diagnosis. I regularly perform keyhole surgery to remove gallbladders and I can arrange to perform this promptly for you.


Umbilical/Incisonal hernias

I perform both open and minimally invasive approaches for all hernias and will advise you on the best approach for yourself. I have an interest in repairing large incisional hernias and perform abdominal wall reconstructions.

Skin lumps


Benign skin lesions such as lipomas can be a nuisance. In addition, any new skin lesion can be concerning. Once I have reviewed your skin lesion I will ensure that I will perform your surgery to remove the lesion promptly.

Call 07414 132 651 for general enquiries or to make an appointment.

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