Health Library Logo

Health Library

Amenorrhea

Overview

Missing your period, or amenorrhea, means not having a menstrual cycle. This can be a problem if it happens repeatedly.

There are two main types. Primary amenorrhea is when someone hasn't had their first period by age 15. This can be due to issues with hormone levels in the body, such as a problem with the ovaries, thyroid, or pituitary gland. Sometimes, there's a physical problem with the reproductive organs, like a blockage.

Secondary amenorrhea is when someone who has had periods in the past stops having them for three or more months in a row. This is often caused by pregnancy, but other hormonal imbalances, like those related to stress, weight changes, or certain medical conditions, can also be the reason. For example, significant weight loss or gain can throw off the body's hormone balance, making menstruation irregular or absent. Eating disorders can also disrupt normal hormone function and lead to amenorrhea.

If you're concerned about missing periods, it's important to talk to a doctor. Treatment will depend on what's causing the problem. The doctor will likely want to figure out the underlying cause, whether it's a medical condition, stress, or something else. This might involve blood tests to check hormone levels, a physical exam, or other investigations.

Symptoms

If your periods stop, you might notice other changes in your body, depending on the reason. These can include:

  • Changes in breast discharge: Sometimes, you might see a milky or white fluid coming from your nipples.
  • Hair loss: You might notice your hair falling out more than usual.
  • Headaches: Frequent or unusually strong headaches could be a sign.
  • Vision problems: Changes in your vision, like blurry vision, are also worth noting.
  • Increased facial hair: More hair growing on your face than usual can be a sign of hormonal changes.
  • Pelvic pain: Pain in your lower abdomen or pelvis could be related to the missing periods.
  • Acne: Breakouts on your skin might be connected to hormonal imbalances.

It's important to see your doctor if you haven't had a period for three months in a row, or if you're 15 or older and haven't started your period yet. Missing periods can have different causes, and your doctor can help figure out what's going on and recommend the best course of action.

When to see a doctor

If you haven't had your period for three months in a row, or if you've never had a period and are 15 years old or older, it's important to see a doctor. This could be a sign of a health issue that needs to be addressed. Missing periods can be caused by various factors, including stress, changes in weight, or underlying medical conditions. A doctor can help determine the cause and recommend the best course of action.

Causes

The Female Reproductive System and Amenorrhea

The female reproductive system includes the ovaries, fallopian tubes, uterus, cervix, and vagina. These organs work together to support pregnancy and menstruation.

Amenorrhea, the absence of menstruation, can have various causes. Some reasons are perfectly normal, while others might indicate an underlying medical issue or be a side effect of certain treatments.

Normal Reasons for Amenorrhea:

  • Pregnancy: A developing baby naturally stops menstruation.
  • Breastfeeding: Hormones released during breastfeeding often suppress menstruation.
  • Menopause: As a woman ages, her ovaries stop releasing eggs, and menstruation ceases.

Medical Treatments and Amenorrhea:

  • Birth Control Pills (Oral Contraceptives): Many women using birth control pills experience amenorrhea. It's common for periods to return to normal after stopping the pills, but it might take a little while. Injections and implants that deliver hormones can also cause amenorrhea. Similarly, some intrauterine devices (IUDs) can have the same effect.
  • Medications: Certain medications, including some antipsychotics, cancer chemotherapy drugs, and allergy medications, can disrupt menstruation and cause amenorrhea.

Lifestyle Factors and Amenorrhea:

  • Low Body Weight: A significant drop in weight, typically 10% or more below a healthy weight, can disrupt the body's hormonal balance, often leading to the cessation of ovulation and menstruation. Eating disorders like anorexia and bulimia often cause this disruption.
  • Excessive Exercise: Athletes who engage in intense training, like dancers or long-distance runners, may experience amenorrhea. This is often due to a combination of factors, including low body fat, stress, and high energy expenditure.
  • Stress: Mental stress can temporarily affect the hypothalamus, a part of the brain that controls hormones regulating the menstrual cycle. This can lead to amenorrhea, but periods typically return to normal when the stress subsides.

Medical Conditions and Amenorrhea:

  • Polycystic Ovary Syndrome (PCOS): PCOS involves hormonal imbalances, resulting in relatively high and consistent hormone levels, unlike the fluctuating levels in a typical menstrual cycle.
  • Thyroid Problems: An overactive (hyperthyroidism) or underactive (hypothyroidism) thyroid gland can disrupt menstrual regularity, including causing amenorrhea.
  • Pituitary Tumor: A noncancerous (benign) tumor in the pituitary gland, which controls hormone production, can interfere with the hormonal regulation of menstruation.
  • Premature Menopause: Menopause typically begins around age 50. Sometimes, the ovaries stop producing eggs earlier than this, leading to premature menopause and the cessation of menstruation.

Problems with the Reproductive Organs:

  • Uterine Scarring (Asherman's Syndrome): Scar tissue in the uterus, sometimes following procedures like a D&C (dilation and curettage) or cesarean section, can prevent the normal buildup and shedding of the uterine lining.
  • Missing Reproductive Organs: Sometimes, there are issues during development that lead to missing parts of the reproductive system, like the uterus, cervix, or vagina. This means menstruation isn't possible.
  • Vaginal Abnormalities: An obstruction in the vagina can prevent menstrual bleeding from leaving the body. A membrane or wall in the vagina can block the blood flow.

The Ovulation Process and Menstruation:

Ovulation is the release of an egg from an ovary. This usually happens about halfway through the menstrual cycle, but the timing can vary. To prepare for ovulation, the lining of the uterus (endometrium) thickens. The pituitary gland signals an ovary to release an egg, and the ovarian follicle breaks open, releasing the egg.

Finger-like structures called fimbriae guide the egg into the fallopian tube. The egg travels down the fallopian tube, and if it's fertilized by a sperm, they unite to form a zygote. The zygote divides into a blastocyst, which implants in the uterine lining, starting a pregnancy. If the egg isn't fertilized, it's reabsorbed by the body, and the uterine lining sheds, resulting in menstruation.

Risk factors

Amenorrhea, or the absence of menstruation, can be linked to several factors. Understanding these risk factors can help you and your doctor identify potential problems early.

Family history plays a role. If women in your family have had amenorrhea, you might have a genetic tendency towards it. This means your genes could make you more prone to this condition.

Eating disorders significantly increase your risk. Conditions like anorexia nervosa and bulimia often disrupt the body's normal hormonal balance, leading to amenorrhea. These disorders cause significant weight loss and can affect the body's ability to regulate menstrual cycles.

Intense athletic training can also disrupt your menstrual cycle. Extreme exercise, especially in sports that emphasize low body weight or high endurance, can lead to amenorrhea. This is because the body's energy balance is disrupted, impacting hormone production needed for menstruation.

Finally, certain gynecological procedures might increase your risk. Procedures like a dilation and curettage (D&C), especially those related to pregnancy complications, or a loop electrosurgical excision procedure (LEEP) for cervical abnormalities, can sometimes disrupt the normal functioning of the reproductive system, leading to amenorrhea. It's important to remember that these procedures are sometimes necessary for health reasons. Your doctor can discuss the potential risks and benefits.

Complications

Missing periods (amenorrhea) can lead to other health issues. Here's how:

  • Trouble getting pregnant: If your body isn't releasing eggs (ovulating) and you're not having periods, you can't get pregnant. Hormonal imbalances that cause amenorrhea can also make it harder to maintain a healthy pregnancy, potentially leading to miscarriages or other complications. This is because your body needs the right hormonal balance for a successful pregnancy.

  • Stress: Not having periods when your friends or peers are can be stressful, especially during the transition to adulthood. This emotional stress can affect your overall health. Feeling different or experiencing a change that isn't expected can cause anxiety and stress.

  • Bone and heart health problems: A lack of estrogen, often a result of amenorrhea, can weaken your bones (osteoporosis) and increase your risk of heart problems (cardiovascular disease). Estrogen plays a vital role in maintaining healthy bones and blood vessels. Without enough estrogen, the body's ability to maintain these systems is compromised. A heart attack, for example, can occur when the blood supply to the heart is interrupted.

  • Pelvic pain: If an underlying physical issue (like a structural problem in the reproductive organs) is causing your amenorrhea, it might also lead to pain in your pelvic area. This pain can range from mild discomfort to severe cramping. Sometimes, the pain is a symptom of the underlying condition causing the missing periods.

Diagnosis

During a visit to your doctor, a pelvic exam will check your reproductive organs for any issues. If you haven't started your period, your doctor might also examine your breasts and genitals to see if puberty is progressing normally.

Missing periods (amenorrhea) can sometimes be a sign of hormonal problems. Figuring out the exact cause can take time and may involve several different tests.

Your doctor might order some blood tests to help find the reason for the missing periods. These tests could include:

  • Pregnancy test: This is often the first test because it rules out a possible pregnancy.
  • Thyroid test: This checks if your thyroid gland is working correctly. It measures a hormone called thyroid-stimulating hormone (TSH).
  • Ovarian function test: This checks if your ovaries are producing the right hormones. It measures follicle-stimulating hormone (FSH).
  • Prolactin test: Low levels of prolactin might indicate a problem with your pituitary gland, a small gland at the base of your brain.
  • Male hormone test: If you have unusual hair growth or a deeper voice, your doctor might check the levels of male hormones in your blood.

Sometimes, a medication is taken for a few days (7-10) to stimulate a period. This can help your doctor understand if the missing periods are due to a lack of estrogen.

Based on your symptoms and the results of any blood tests, your doctor might recommend other tests, such as:

  • Ultrasound: This uses sound waves to create images of your internal organs. If you haven't started your period, an ultrasound can help check for any problems with your reproductive organs.
  • MRI (magnetic resonance imaging): This uses a powerful magnet and radio waves to create very detailed images of soft tissues in your body. An MRI might be needed to check for a pituitary tumor.

If other tests don't find a specific cause, your doctor might suggest a hysteroscopy. This involves using a thin, lighted tube to look inside your uterus to check for any problems.

Treatment

Amenorrhea, or the absence of menstruation, has different causes, and therefore different treatments. What works depends on why your periods stopped.

Sometimes, taking birth control pills or other hormone medications can get your periods back on track. These hormones help regulate the body's cycle.

If an issue like a problem with your thyroid or pituitary gland is the cause, medicine can often fix the problem and restore your menstrual cycle. These glands produce hormones crucial for many bodily functions, including menstruation.

In cases where a tumor or a physical blockage is preventing your periods, surgery might be needed to correct the problem. This would involve removing the tumor or fixing the blockage.

footer.address

footer.talkToAugust

footer.disclaimer

footer.madeInIndia