Also known as Not menstruating, Amenorrhea, and Lack Of Menses
Amenorrhoea (BE), amenorrhea (AmE), or amenorrhœa, is the absence of a menstrual period in a woman of reproductive age. Physiological states of amenorrhoea are seen during pregnancy and lactation (breastfeeding), the latter also forming the basis of a form of contraception known as the lactational amenorrhoea method. Outside of the reproductive years there is absence of menses during childhood and after menopause.Source: Wikipedia
The most common causes of absence of menstruation are idiopathic absence of menstruation, pregnancy, and vulvodynia. Other possible causes, such as obesity, are more rare.
Within all the people who go to their doctor with absence of menstruation, 31% report having nausea, 28% report having sharp abdominal pain, and 25% report having back pain.
Patients with absence of menstruation often receive hematologic tests, pelvis exam, standard pregnancy test, urinalysis, examination of breast, ultrasonography, chlamydia test and microscopic examination (bacterial smear; culture; toxicology) .
The most commonly prescribed drugs for patients with absence of menstruation include medroxyprogesterone, ortho cyclen, portia, modicon, clomiphene (clomid), nonoxynol 9 topical, desogestrel / ethinyl estradiol, terconazole topical, progesterone, multivitamin, prenatal, nevirapine, human chorionic gonadotropin (hcg) and meperidine / promethazine .
Groups of people at highest risk for absence of menstruation include race/ethnicity = other, age 30-44 years, sex == female and age 15-29 years. On the other hand, age 75+ years, sex == male, age 60-74 years, age 1-4 years, and age < 1 years almost never get absence of menstruation.