Her body clock moved when puberty started, and the premenstrual days land on top of a deficit that was already there. What the ABCD Study found in 3,037 girls, and the two dates a month that change the appointment.
Two houses create one specific failure: everything she needs is at the other one. What to keep permanently at yours, how to coordinate with her mother without negotiating, and what the first two years normally look like.
Headaches that land in the same few days as her period follow a recognised pattern with a definition attached. Two dates written down across three months is what turns it into something treatable.
The bathroom light is on again and you have worked out that mentioning her skin is a bad idea. Here is what it is doing, how it tracks her cycle, and where you are actually useful.
A monthly pattern with a clear week in between is a different thing from adolescence being adolescence. What sorts PMDD from a rough month, and how to raise it without making it worse.
A period that disappears during a hard training block is not a badge. It is a body switching off a system it cannot afford, during the exact years her skeleton is being built.
You cannot demonstrate this one and should not try, so the useful question is which parts you own. The box, the hours, the backup in her bag, and the three things she will ask a friend instead of you.
A first period sits near the end of puberty, not at the start of it, so her age matters less than when the rest of it began. Three thresholds, the likeliest explanations, and the combination that should not be watched.
She has no baseline, so she assumes her month is everyone’s month. Here is the countable version of normal, the number that makes this more than a comfort problem, and what to carry into the appointment.
The doctor says the pill and her face closes. Why it is offered for pain rather than sex, the treatment ladder families never hear the top of, and the one safety question to carry in.
