Breast Cancer: Was Your Medical Treatment Negligent? | Bolt Burdon Kemp Breast Cancer: Was Your Medical Treatment Negligent? | Bolt Burdon Kemp

Find lawyer icon
Find your Lawyer

Free call back
Contact us
Round the clock support
Won't shy away from difficult cases
Committed to swiftly progressing claims

Breast Cancer: Was Your Medical Treatment Negligent?

Breast cancer is the most common type of cancer in the UK. As a result, it is the third biggest cause of death from
cancer[1]. According to these statistics, you will know at least one person in your lifetime who will be affected. Yet for a condition which is so well known amongst both doctors and the public, it is still not immune from negligence.

Breast Cancer

There is a wide range of medical treatments for breast cancer, so how do you know if your care has been negligent? If it has been, what can be done?

Overview of the Facts

Who does it affect?

Breast cancer can affect both men and woman, of varying ages. However the majority of breast cancer patients are women over the age of 50.

Types of breast cancer

There are several types of breast cancer:

Non-invasive breast cancer (also referred to as ‘carcinoma in situ’)

This is cancer in the breast ducts, which has not developed the ability to spread outside the breast. According to NHS Choices, the most common type of non-invasive cancer is ductal carcinoma in situ (DCIS).

Invasive breast cancer

This is the most common form of breast cancer. It develops in the cells that line the breast ducts and has the ability to spread outside the breast, although it doesn’t necessarily mean that it has spread.

Other types of breast cancer

There are also other types of breast cancer, which are much less common. These include:

  • invasive lobular breast cancer;
  • inflammatory breast cancer; and
  • Paget’s disease of the breast

What are the symptoms?

The symptoms of breast cancer will vary according to the type of cancer you have and the stage it is at. However generally speaking, the most common signs of breast cancer are:

  • A lump or thickening in an area of the breast
  • A change in the size, shape or feel of a breast
  • Dimpling of the skin
  • A change in the shape of your nipple, particularly if it turns in, sinks into the breast, or has an irregular shape
  • A blood stained discharge from the nipple
  • A rash on a nipple or surrounding area
  • A swelling or lump in your armpit[2]

Breast Cancer 2

How is it treated?

The type of treatment that you have will depend on the type of cancer you have, how advanced it is and on your general health. However generally speaking, the most common types of treatment for breast cancer are surgery (to remove the cancerous tumour or all the breast tissue), chemotherapy, radiotherapy or hormone therapy. It’s not uncommon to receive a mixture of treatment options, to ensure that your cancer is effectively treated.

The Law

In order to consider the common areas where breast cancer negligence may occur, it’s important to set out what ‘negligence’ actually means.

In the eyes of the law, medical negligence means proving that:

  1. The standard of medical treatment provided was unacceptable, and would not have been provided by any reasonable body of medical professionals in the UK (this is known as ‘breach of duty’), and
  2. That this breach of duty caused an injury which would not have occurred if the treatment had been acceptable (this is known as ‘causation’)

In order to succeed with a claim, you must prove both of these elements. To do this, your solicitor will obtain evidence from an independent medical expert.

Breast Cancer: Types of Negligence

Unfortunately, medical treatment for breast cancer can sometimes result in a negligence claim for compensation. Failings in breast cancer care can have a devastating impact on a patient – and can cause their symptoms to worsen and cancer to spread, minimising their treatment options and shortening their life expectancy.  If the treatment provided has been unacceptable and caused a further injury, the patient will be entitled to compensation.

There are two main types of breast cancer negligence:

  • Delays in diagnosis; or
  • Inappropriate treatment (including a failure to provide treatment or incorrect treatment being provided)

Delay in Diagnosis

Breast cancer is typically diagnosed when a patient either attends their GP and is referred for further specialist assessment, or during a routine mammogram screening.  Women aged between 50 and 70 are invited for screening mammograms every 3 years in England and Wales.

The National Institute for Health and Care Excellence (‘NICE’) produces national clinical guidelines. The NICE recommendations for how patients with suspected breast cancer should be treated are detailed below:

Patient is aged 30 and over and has an unexplained breast lump, either with or without pain; or

Patient is aged 50 and over and has any of the following symptoms in one nipple only:

  • discharge
  • retraction
  • other changes of concern
The patient must be referred for suspected breast cancer for an appointment within two weeks






Patient has skin changes that are suggestive of breast cancer; or

Patient is aged 30 and over with an unexplained lump in their armpit

A referral should be considered for suspected breast cancer for an appointment within two weeks



Patient is aged under 30 and has an unexplained breast lump, either with or without pain. A non-urgent referral should be considered for an appointment that is outside the two week period


Whilst failing to comply with NICE guidelines does not necessarily prove negligence, it is a very good indication that your treatment may have been inappropriate.

Patients who have attended their GP with any of the symptoms above and not been referred as advised may have a claim for medical negligence, if they can prove that this failure caused them a further injury.

In respect of screening mammograms, the most common type of negligence happens when there is a failure to spot cancer on the mammogram. This is likely to be the fault of the radiologist or sonographer who reviews the mammogram and prepares a report detailing the findings. If breast cancer has been missed during a routine screening mammogram, it may be that this is then not picked up for a further three years – which could have a serious impact on the patient’s health.

There may also be failings in histology, when biopsies are incorrectly interpreted and cancer is missed.

Inappropriate Treatment

Once you have been diagnosed with breast cancer, you will most likely be under the care of an Oncologist or Breast Surgeon. Along with other doctors involved in your care, they will prepare a treatment plan. Unfortunately, the treatment that has been chosen or provided can sometimes be unacceptable. This can cause the patient’s cancer to spread, limiting their treatment options and life expectancy.

Common types of negligence in breast cancer treatment include:

  • Staging: once a diagnosis of breast cancer is made, it will be staged. This is to assess the level of that cancer – to see if it has spread (referred to as ‘metastasis’) to other areas of your body. The treatment you receive will depend on the type and staging of your cancer, so it’s crucial that this is done correctly. If there has been a failing to properly stage your cancer, you’re likely to receive inappropriate or insufficient treatment;
  • Surgery: surgery can be used to remove either the cancer (a lumpectomy or wide local excision) or all the breast tissue (a mastectomy). However there can be negligence when the cancer is not properly removed, or if healthy breast tissue is unnecessarily removed. In the last few years, there have been numerous medical negligence claims for patients who have undergone ‘cleave sparing mastectomies’, a type of surgery that leaves some tissue behind but means that the patient is at a higher risk of suffering a recurrence of cancer. There may also be problems with reconstructive surgery, leading to uneven breasts or scarring.
  • Monitoring: once the breast cancer is treated, patients will need to be monitored regularly to ensure that the cancer does not recur. If there are failings in monitoring, for example if this is not done appropriately or for long enough, there is a chance that the cancer could return and be missed, allowing it to spread;
  • Radiotherapy/chemotherapy: radiotherapy, hormone therapy and chemotherapy are used to eradicate cancer, however they also attack healthy cells. As such, they must be used only when required and appropriately to ensure that the cancer is treated and that any damage to healthy tissue is limited.

What Can Be Done?

Patients who have suffered medical negligence for breast cancer are entitled to compensation. This money is to try to put the patient back in the position they would have been in had the negligence never occurred. The level of compensation awarded will be based on the extent of injuries and financial losses caused directly by the negligence. For injuries, this can commonly include the need for further treatment, scarring and reduced life expectancy. For financial losses, this can include loss of earnings, the need for future treatment and any equipment or adaptations you may need.

As a medical negligence solicitor, I have investigated several breast cancer claims, and continue to do so today. I have successfully obtained compensation for patients and families of patients who have passed away due to negligence.


At Bolt Burdon Kemp, we will fight to obtain the compensation that you deserve to move forward with your life. However we appreciate that breast cancer negligence can be incredibly difficult to deal with and we also put you in touch with practical support services, to help you cope physically and emotionally.

There are also charitable organisations set up to help those affected and raise money for better care. Breast Cancer Care are a UK wide charity seeking to provide breast cancer patients with information and support. Please click here to find out more about Breast Cancer Care and how they can help you and your family cope.



Some of Our Accreditations

See more of our accreditations

We’re here to help you.

Want to talk to one of our experienced lawyers? We can call when it suits you for a no-obligation, strictly confidential chat.

Your browser is out of date. Please update your browser.

This site (and many others) provides a limited experience on unsupported browsers and not all functionality will work correctly or look its best.