Absence of menstruation in a person who has not menstruated until the age of 15, whose most common cause is related to hormone levels, although it can also be caused by anatomical problems.
| Grammatical category | Noun |
|---|---|
| Field | Fertility problems |
| Level of specialization | High |
| Definition source | Mayo Clinic |
| Gender relationship | Yes, woman |
| Specific to one sex | Yes |
| Prevalence | Woman |