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Mr Simon Marsh: Consultant breast, groin and hernia surgeon, London

Simon Marsh photo
Mr Simon Marsh: Consultant breast, groin and hernia surgeon, London

Mr Simon Marsh is a consultant breast, hernia and groin surgeon with the London Breast Clinic at 108 Harley Street. He specialises in diagnosis and treatment of breast cancer, benign breast disease, Gilmore's groin, hernia and sports injuries.

A highly qualified and experienced breast surgeon

Mr Simon Marsh MA MD FRC trained at Trinity College, Cambridge and the Clinical School, Addenbrookes Hospital. He was one of the few students to be awarded the William Harvey Studentship in consecutive years.  

In 1996 he was awarded an MD by the University of Cambridge and received the Intercollegiate Fellowship in General Surgery.

His MD thesis from the University of Cambridge and carried out at Charing Cross Hospital focused on the role of growth factors in breast cancer. He is Senior Consultant Surgeon with an interest in breast diseases and surgical oncology at the Colchester Breast Unit in Essex and has been a member of The London Breast Clinic and The Gilmore Groin & Hernia Clinic since 1999.

Following qualification he developed an interest in sports medicine and has advised on many sports, including equestrian events, motorcycle speedway and rugby.

This expertise has ensured his success since joining The Gilmore Groin and Hernia Clinic where he has become adept and experienced in assessing, diagnosing and treating patients, not only with Gilmore’s Groin but patients with herniae of all types.

His general surgical background  has led to an expertise in minor daycase surgery under local anaesthetic. At the One Stop Day Surgery Centre at 108 Harley Street he provides same day consultation and surgery for patients. He is on the surgical panel of The Mole Clinic providing rapid surgical access for their patients with suspicious lesions identified as requiring excision.

In 2006 he halved his workload within the NHS to dedicate more time to the Clinics at 108 Harley Street. He retains an active interest in cancer research and is an Honorary Senior Lecturer to the Department of Biomedical Sciences in the University of Essex.

The London Breast Clinic

The London Breast Clinic provides an integrated service staffed by a dedicated multi-disciplinary team specialising in the assessment, diagnosis and treatment of all benign and malignant breast disease. It aims to achieve this with the highest standard of professional care, and a minimum of delay in relaxing and friendly surroundings.

This private breast clinic in London is dedicated to minimising patient anxiety. The caring, highly experienced, professional team is available every weekday, so appointments can be usually be offered within 24 hours sometimes even the same day.

This multi-disciplinary team comprising consultant surgeons, radiologists, pathologists, oncologists, nurses and other experienced health professionals, offers the best possible assessment of benign and malignant breast disease in the shortest possible time and within one site.

The expertise of their specialist breast care team enables them to provide care to breast patients at all stages - from screening through surgery, to radiotherapy and chemotherapy both at 108 Harley Street and at associated hospitals.

One stop day surgery centre

The centre offers same day consultations and minor operations under local anaesthetic whilst avoiding the formal admission procedure required at larger private facilities. The surgery is staffed by trained theatre personnel and experienced nurses. The operating theatre and breast clinic treatment rooms have the latest state-of-the-art equipment where the following procedures can be carried out: 

  • Breast cyst aspiration
  • Breast abscess drainage
  • Fine needle aspiration cytology
  • Core biopsy
  • Nipple biopsy
  • Nipple discharge analysis
  • Cytological assessment
  • Surgical excision of lesions where appropriate


Facilities and services provided at The London Breast Clinic

  • Breast care advice and counselling
    All practice nurses have undergone specialist breast care training. To ensure continuity of care and a full understanding of your situation, they are available for pre and post operative information, advice and support, for both out-patients and in-patients on all aspects of breast care, including: general health; self examination; breast screening; breast reconstruction; breast prosthesis information and fitting; hormone replacement therapy, with reference to the breast.

  • Breast screening and assessment of screening abnormalities

    Adhering to the high standards of the National Breast Screening Programme their screening is tailored to each patients specific needs. Full back-up facilities are available for assessing abnormalities with on site mammography, ultrasound stereotactic/perforated plate cytology and localisation. A complete team with the necessary radiological, surgical and pathology expertise and equipment assess all conditions.

  • Lump assessment

    For patients with a lump there is one-stop assessment by a breast surgeon, with appropriate imaging and cytology.

  • Mastalgia (breast pain)

    They have consultants with a particular interest and expertise in breast pain, prevention and treatment.

  • Familial breast cancer

    Advice regarding genetic predisposition to breast malignancy and the appropriate investigations is available from a consultant geneticist with expertise in familial breast cancer.

  • Fine Needle Aspiration Cytology (FNAC)
    In this investigation a consultant breast surgeon a inserts a fine needle into the breast, to remove a small sample cells from the breast lump, for microscopic examination (cytology), to look for any signs of abnormality in the cells. The results are usually available with 24 hours and the consultant breast surgeon will then discuss the findings with you.

  • Cosmetic surgery

    A complete range of cosmetic surgery procedures including mastopexy (breast uplifting), augmentation (enlargement), reduction, nipple reconstruction and correction of congenital deformities.

  • Reconstructive surgery

    Operations to restore the shape of the breast following mastectomy, matching as nearly as possible to the remaining breast can be planned either as an immediate reconstruction at the same time as the mastectomy operation or undertaken at a later date.

  • Oncology

    Their clinical oncologists specialise in the treatment of tumours by drugs, hormones and radiotherapy.

  • Radiotherapy

    The use of high energy x-ray beams to treat the breast tissue. Radiotherapy is usually undertaken after surgery at associated hospitals under the supervision of the clinical oncologists.


Visit Harley Street


  • Diagnosis and treatment of breast cancer
  • Benign breast disease
  • Gilmore's groin
  • Hernia and sports injuries





The London Breast Clinic 

108 Harley Street 



Tel:  +44 (0)20 7563 1234

Fax: +44 (0)20 7563 1212

Email: info@108harleystreet.co.uk

Visit the London Breast Clinic website



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