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Absent menstruation, or amenorrhea, is the absence of menstrual bleeding. It happens when a girl hasn’t had her first menstrual period by age 16. It also occurs then a woman fails to menstruate for 3 to 6 months.
Amenorrhea can happen for many reasons. The most common cause is pregnancy. However, amenorrhea may also be caused by various lifestyle factors, including body weight and exercise levels. In some cases, hormonal imbalances or problems with the reproductive organs might be the cause.
You should see your doctor if you’re experiencing amenorrhea. The underlying cause of your missed periods may require treatment.
The two types of amenorrhea are referred to as primary and secondary.
Primary amenorrhea is when a teenage girl has reached or passed the age of 16 and still hasn’t had her first period. Most girls begin menstruating between ages 9 and 18, but 12 is the average age.
Secondary amenorrhea is when a woman has stopped menstruating for at least three months. This is the more common form of amenorrhea.
In most cases, both types can be treated effectively.
Primary and secondary amenorrhea can occur for numerous reasons. Some causes are natural, while others are medical conditions that need to be treated.
A teenage girl who hasn’t started her periods by at least age 16 should see a doctor. A trip to the doctor’s office is also necessary if she is age 14 or older and hasn’t experienced any signs of puberty yet. These changes would include the following in numbered order of appearance:
Menstruating women and teens should see their doctor if they have missed three or more periods in a row.
When you see your doctor about amenorrhea, your doctor will perform a physical exam and ask you a series of questions. Be prepared to talk about your normal menstrual cycle, your lifestyle, and any other symptoms you’re experiencing. Your doctor will also order a pregnancy test if you haven’t had a period in three months. If that condition is ruled out, you may need more tests to determine the underlying cause of your missed periods. These diagnostic tests may include:
Treatment for amenorrhea varies depending on the underlying cause. Hormonal imbalances can be treated with supplemental or synthetic hormones, which can help normalize hormone levels. Your doctor may also want to remove ovarian cysts, scar tissue, or uterine lesions that are causing you to miss your menstrual periods.
Your doctor may also recommend making simple lifestyle changes if your weight or exercise routine is contributing to your condition. Ask your doctor to refer you to a nutritionist or dietician, if necessary. These specialists can teach you how to manage your weight and physical activity in a healthy way.
Schedule an appointment with your doctor so they can determine the cause of your amenorrhea. Make sure you stick with your treatment plan and attend all follow-up appointments. Always contact your doctor if your condition doesn’t improve with medical treatments or lifestyle modifications.
Written by: Mary Ellen Ellis
Medically reviewed on: Apr 21, 2016: Michael Weber, MD
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