1. Signs of Primary Amenorrhea
Menstruation typically begins for women at or around 12 to 13 years of age. It is not uncommon for menstruation to occur later, but if it has not occurred by age 16, this may be a symptom of amenorrhea. This type of amenorrhea is known as primary amenorrhea. Primary amenorrhea can be a symptom of a number of other problems such as undeveloped reproductive organs, pituitary disease or a deformity within the vagina. Diagnosing any of these symptoms will typically be enough to identify the reason why periods have not yet begun to occur.
2. Spotting Secondary Amenorrhea
Secondary amenorrhea refers to the absence of a menstrual period for more than three to six months. This is the more common type of amenorrhea and can be attributed to a wide variety of causes. Pregnancy, for example, will commonly cause secondary amenorrhea. Any extended illness could be identified as a cause of secondary amenorrhea as well. Even a minor illness like the common cold can cause delayed menstruation. Contraceptive medications (birth control pills) are among the most common causes of secondary amenorrhea. It is important to note that the effects of birth control pills can extend for as long as three to six months after you have stopped taking them.
3. Stress and Other Factors
Stress is a known culprit in the presence of amenorrhea. Women who are under a lot of stress can sometimes go for months without a regular period or without any menstruation whatsoever. Stress will more likely cause a delayed menstrual cycle, however, so if you are experiencing a lack of menstruation for an extended time frame, then there may also be other factors at work. Amenorrhea may also be a side effect of some medications. Anti-depressants and anti-psychotics, for example, are known to cause amenorrhea.
