Holly Kobayashi was in bed, breastfeeding her eight-day-old son, when she noticed a little bruise on his left arm. It was tiny, around the size of a 5p piece, but it was about to change their lives.
That was the last night for four months that she was allowed to sleep under the same roof as her baby.
In the sleep-deprived fug of early motherhood, she could think of no reason for the bruise and feared it might be a sign of illness. “You just worry about every little thing,” she recalls. “I thought, ‘Maybe he’s got leukaemia.’”
When the midwife visited the next day, Holly brought up the bruise straight away, hoping for reassurance. Instead Holly, then 36, had set in motion a process