Women only

I’m guessing you’ve read the sticky post on this issue?
http://community.myfitnesspal.com/en/discussion/10359984/women-menstrual-cycle-weight-and-fitness-matters/p1

mine tends to go up around 5 pounds due to water retention for a couple of weeks.

then it disappears pretty much, overnight, with any loss noticed then.

The week before my period I lose nothing and stick there for about two weeks, and then generally drop several pounds as soon as my period is over. If you averaged it over the month, it would be like losing one pound a month, but instead it's more like I lose 4 pounds the day after my period is over, and nothing the rest of the time. It's irritating, but at least I know what's going on.

Mine stays constant through out my period, of late. Usually the reserved weight from deficits leading up to my monthlies occurs a day or two later. During my cuts, I live for the three weeks leading up to it. The 4 days during ... Bleh!! I weigh in to just chart progress.