DD3 is heading off to University, and was filling in the form to access the University Health Centre.
They need to know her gender.
Further investigation by us (we clicked the little I icon) reveals that this can be either the gender assigned at birth OR the gender registered at her current GP.
I got to musing, I don't recall any official assignation of her gender, though I was completely buckled on pethidine, so I may have missed this. DH doesn't remember either and he'd had no drugs at all.
So obviously we'll have to contact the GP shortly to find out.
But, as I said, musing: who do I ask about my gender assigned at birth, sadly mom is no longer with us and dad was at a football match god bless the seventies. 
In absolute seriousness, though, if this information is important enough to be needed on Medical applications, then it shouldn't be some nebulous concept, but an actual verifiable, documented detail for each person.
This stuff is ridiculous.
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