<unk>  is a form of clinical depression which can affect women, and less frequently men, after childbirth. It is widely considered to be treatable.  Studies report prevalence rates from 5% to 25%, but methodological differences among the studies make the actual prevalence rate unclear.
Postnatal depression
Postpartum depression
Premenstrual syndrome
Premenstrual dysphoric disorder
Secondary amenorrhea
Depression 
Peripartum mood disturbances
Post travel depression