In one of the episodes of Game of Thrones, Sansa woke up to found blood on her bed. She became fearful and started to hide this from Cersei. I didn't understand it. Cersei was cruel to Sansa, but I don't think she wouldn't have given Sansa medical attention. Afterall, Sansa was going to marry Joffrey.
And then, things got more confusing. Instead of calling a maester, Cersei simply said "You flowered little dove". If Sansa had pooped that much blood, that situation could kill her.
I know the meaning of the verb flower. From Google/ Oxford:
(of a plant) produce flowers; bloom.
"Michaelmas daisies can flower as late as October"
be in or reach an optimum stage of development; develop fully and richly.
"she flowered into as striking a beauty as her mother"
I believe second definition has some context, but what has a disease to do with this?
Did Cersei make fun of Sansa by secretly meaning that Sansa lost her youth because of a serious health issue? What exactly did Cersei mean when she said "You flowered little dove"?