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Oligomenorrhea is infrequent menstrual periods. [1] Generally the menstrual periods occur at intervals of greater than 35 days, with less than 9 periods in a year, where previously there had been a regularly established pattern. [ 1 ]
Diagram illustrating how the uterus lining builds up and breaks down during the menstrual cycle Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone ...
Oligoamenorrhea, also known as irregular infrequent periods or irregular infrequent menstrual bleeding, is a collective term to refer to both oligomenorrhea (infrequent periods) and amenorrhea (absence of periods). [1] It is a menstrual disorder in which menstrual bleeding occurs on an infrequent and irregular basis.
Oligomenorrhea is the medical term for infrequent, often light menstrual periods ... One-third of women will experience abnormal uterine bleeding in their life ...
Polycystic ovary syndrome (PCOS) is a common endocrine disorder affecting 4–8% of women worldwide. [33] It is characterized by multiple cysts on the ovary, amenorrhea or oligomenorrhea, and increased androgens. [33]
Weight gain is common in women going through menopause. It can be caused by a variety of factors, including hormone fluctuations, muscle loss, poor sleep, and changes in eating and exercise habits.
For example, women with eating disorders tend to have oligomenorrhea (prolonged menstrual cycles greater than 35 days) and secondary amenorrhea (absence of menstruation for at least three consecutive months). Starvation from anorexia nervosa or bulimia causes the HPG axis to deactivate causing women's ovarian and uterine cycles to stop.
Polymenorrhea can be contrasted with oligomenorrhea, in which menstrual cycles are greater than 35 or 37 days in length. [3] [12] The condition can also be distinguished from polymenorrhagia, which is a combination of polymenorrhea and menorrhagia (heavy menstrual bleeding). [1]