Breast cancer, the most common form of cancer in the UK, is rare in younger women, but NHS data shows an increase in cases among those under 50. The number of cases rose from 42 per 100,000 women under 50 in 2001 to 47.5 in 2023.
According to the National Disease Registration Service, women in their 20s made up 250 (0.5%) of the 50,535 cases in England in 2023. Only three women aged 19 or under were diagnosed that year.
Charities and survivors emphasise the importance of regular self-checking. Possible theories for the rise in younger adults getting cancer, including breast cancer, include diet, obesity, and chemicals in products and the environment.
Dr Kerri Palmer-Quinn, science manager at Breast Cancer UK, suggests reducing alcohol intake and being aware of endocrine-disrupting chemicals (EDCs) found in everyday items like cosmetics. She recommends choosing alcohol-free options, checking labels, and opting for fragrance-free products where possible.