In a cruel twist of irony, imagine the reason you may never be able to have a baby is because of the contraceptive pill. Some women using the pill long term may find themselves faced with a rare but serious side effect; a liver tumour. Ranging up to 20 cm in size, these masses are linked to high levels of oestrogen. During long term pill use or pregnancy, these tumours can grow and over time may even rupture leading to death, or turn cancerous. But how many women are aware this side effect even exists? And if women are diagnosed with these tumours, why is the medical treatment so different from person to person?