oligomenorrhea
Pronunciation: ol-i-go-men-or-EE-a
Infrequent menstrual periods with intervals longer than 35 days but less than six months.
Full Definition
Oligomenorrhea is a menstrual disorder characterized by infrequent menstrual cycles, typically defined as intervals of 35 days to 6 months between periods. This condition can be physiological (such as during breastfeeding or perimenopause) or pathological (associated with PCOS, thyroid disorders, or hypothalamic dysfunction). It differs from amenorrhea, which is the absence of menstruation for six months or longer. Proper documentation should specify cycle length and any associated symptoms or underlying conditions.
Usage
Usage note: Specify cycle length when documenting; distinguish from amenorrhea (>6 months) and irregular cycles.
In Context
- "The patient reported oligomenorrhea with cycles ranging from 45 to 60 days." — Menstrual history documentation
- "Oligomenorrhea in this adolescent patient may indicate underlying PCOS." — Clinical assessment note