This is a composite account drawn from the experiences of women diagnosed with breast cancer while working full-time, with dependants and a mortgage. The details are representative. It is written to share what many women only discover after diagnosis — that your rights at work are stronger than you think, and that you do not have to navigate this alone.
The diagnosis nobody expects at 38
Breast cancer can occur at any age. Around 7,500 women under 45 are diagnosed in the UK every year — roughly one in seven of all diagnoses. Many are in demanding jobs with no clear sense of what their diagnosis means for their career, their income, or their employer's expectations. The weeks immediately after diagnosis are consumed by medical appointments, treatment planning, and the emotional weight of telling people. Employment rights and practical workplace arrangements are often the last thing anyone thinks to explain.
Your legal rights as an employee with breast cancer
Under the Equality Act 2010, a cancer diagnosis — from the point of diagnosis — is automatically classified as a disability. This means your employer has a legal duty to make reasonable adjustments to support you at work, regardless of whether you are currently fit to work. Reasonable adjustments might include flexible working hours to accommodate treatment appointments, a phased return to work after surgery or chemotherapy, a temporary change to lighter duties, or permission to work from home during recovery.
Your employer cannot legally dismiss you, or treat you unfavourably, because of your cancer diagnosis. If they do, that is disability discrimination. Citizens Advice, Macmillan Cancer Support and Working With Cancer all offer free guidance on employment rights for people with cancer diagnoses.
Telling your employer
You are not legally required to tell your employer about a cancer diagnosis. However, in practice, a diagnosis that requires surgery, chemotherapy or radiotherapy will involve significant time off — and you will need to explain the absence. Most women find it easier to be honest about the broad picture (breast cancer diagnosis, planned treatment) while choosing how much medical detail to share. You can give general information without specifying stage, prognosis or specific treatment.
Ask to speak to your HR department, not just your line manager. HR will be familiar with occupational health referrals and the reasonable adjustments process. Asking for adjustments is not weakness — it is you exercising a legal right, and it protects your employer from an Equality Act claim.
Sick pay during treatment
Statutory Sick Pay (SSP) in the UK is currently £116.75 per week, paid by your employer for up to 28 weeks if you are an employee earning above the lower earnings limit. Many employers offer enhanced sick pay above SSP — check your contract or ask HR. If you are self-employed, you cannot claim SSP, but you may be entitled to Employment and Support Allowance (ESA). Citizens Advice and Macmillan Cancer Support both have benefit calculators to help you understand what financial support is available.
During active treatment
Some women continue to work during parts of their treatment — particularly during hormone therapy or targeted therapy, which have fewer acute side effects than chemotherapy. Others need to step back entirely. Both choices are valid. What matters is that your employer is supporting you with reasonable adjustments, that you are not pressured to return before you are medically ready, and that you have a phased return plan when you do go back.
Returning to work
Returning to work after breast cancer treatment is rarely as straightforward as going back to what you did before. Chemotherapy-related cognitive effects ('chemo brain'), fatigue, pain and emotional recovery all affect capacity in ways that are not visible. A phased return — starting with reduced hours and building up over weeks or months — is standard NHS occupational health practice and something you can request from your employer. If your employer refuses a phased return without good reason, that may be a failure of the reasonable adjustments duty.