it's call "menopause"
that means no more eggs
EVAR
No women fail to menstruate. It comes naturally.
Their body
No, only people with female reproductive systems menstruate.
No, transwomen do not have uteruses or ovaries. Transwomen cannot menstruate or bear children.
yes
They had peasant women menstruate for them!
I was often late on the pills, sometimes I didn't even get it until I had already started taking the active pills. Ask your doc.
I'm not sure what you mean asking if it 'gets to them'. Most women menstruate, this is a normal occurrence so no reason for it to bother other women when you menstruate.
They suffer iron loss when they menstruate.
No, not every female gets her period. If talking exclusively of those who are biologically female there are those who don't have the anatomy to menstruate or their bodies don't produce the hormones needed to have a menstrual cycle. Pre-pubescent girls don't menstruate and women past menopause don't menstruate, also women who are pregnant won't menstruate during pregnancy (sometimes for longer if they breastfeed), and women who have a hysterectomy to remove the uterus.
Usually anywhere from three to five days.
Firstly, some men menstruated too - anyone with a vagina, uterus, and ovaries can menstruate - it's not just girls and women who have these body parts. Females menstruate because we are the ones who get pregnant, the body prepares for pregnancy and if we don't fall pregnant the uterus lining sheds so it can renew again next cycle ready for the next possible pregnancy.