Women typically begin their monthly menstrual cycle around the age of 12. There are numerous reasons why the menstrual cycle may temporarily stop, and menstruation will cease permanently when women reach menopause. To determine whether you are experiencing missed periods and what might be causing them, you need to consider various factors, including your health and lifestyle habits.
Steps
Consider Health Factors

Review the birth control methods you are using. If you miss a period while on birth control, it might be due to irregular or prolonged menstrual cycles, depending on how the pills are taken and how your body responds to them.
- Birth control pills typically come in a 21-pill pack with 7 placebo pills. When taking the placebo pills, you will menstruate. If you skip the placebo pills and start a new pack, your period will be delayed.
- Some newer birth control pills contain only active pills for 24 days. This may result in reduced bleeding or even no period at all due to hormonal changes.
- There are long-term birth control methods where you take the pill continuously for a year, which prevents menstruation. If you're using this method, your periods will stop and will not return until you stop the medication. However, many women experience breakthrough bleeding or brown discharge, even when the medication is taken correctly. If bleeding continues, you may want to consult with a gynecologist to rule out other causes and consider switching to a different type of birth control.
- Even when using the traditional 21-pill birth control pack without skipping the placebo pills, you may occasionally miss a period. If you're not pregnant and have followed the pill schedule correctly, this may just be a side effect of the medication.
- Occasionally skipping the placebo pills to avoid menstruation for special events is common, but this should not be done regularly. If you want to stop your periods with birth control, talk to your doctor about switching to a continuous-use pill. With your doctor's approval, you can opt for a 21 or 24-day pill pack and skip the placebo pills, which could be more cost-effective than other brands designed for continuous use.
- If you're using an IUD (intrauterine device), your menstrual cycle may stop after a few months of having the device inserted.

Consider recent changes in your lifestyle. Sometimes, lifestyle changes can cause a missed period. Typically, this won't lead to a long-term absence of menstruation.
- Have you recently increased the intensity of your daily workouts? If your exercise routine has become more strenuous, hormonal changes affecting the menstrual cycle could result in delayed or missed periods. Low body fat, stress, and high energy expenditure can all disrupt the cycle. Your period should return to normal by the next month, but you should see a doctor if you continue to miss periods even after adapting to the new lifestyle.
- Stress can impact the hypothalamus, the part of the brain that regulates hormones controlling menstruation. If you've been under stress due to significant life changes like moving or changing jobs, you might experience a missed period. This change is usually temporary, but you should speak to a doctor or therapist about stress management if you frequently miss periods due to stress.

Get tested for hormonal imbalances. Hormonal imbalances can cause long-term menstrual disruptions. If you experience a sudden loss of periods, you should consult a doctor to check for hormonal imbalances that may require treatment.
- Polycystic Ovary Syndrome (PCOS) leads to elevated hormone levels, particularly disrupting normal fluctuations during the menstrual cycle. If you have PCOS, your periods may become irregular, but they won't stop permanently until menopause.
- If your thyroid is overactive or underactive, your periods may be irregular until thyroid hormone levels are stabilized through treatment. A thyroid condition typically won't cause long-term loss of menstruation.
- Benign tumors sometimes form on the pituitary gland, and they may need to be removed since they can interfere with hormone levels and stop the menstrual cycle. Once the issue is addressed, your period should return to normal.

Visit a doctor to rule out structural issues. Sometimes, issues with the reproductive organs can lead to missed periods. Depending on the case, this may be temporary or ongoing.
- Uterine scarring, which forms in the lining of the uterus, can stop menstruation by preventing the shedding of the endometrial lining, a crucial part of the menstrual cycle. Depending on the severity of the scarring, this condition can cause missed or irregular periods.
- Sometimes, congenital conditions result in missing reproductive organs, causing the absence of menstrual periods in females. Depending on which organs are missing, menstruation may not occur for an extended period.
- Any abnormalities in the vaginal structure can also result in missed periods, as you may not experience bleeding during your cycle. However, this doesn't mean you are not ovulating or experiencing menstrual cycles. It's important to discuss your menstrual health with a doctor if you have vaginal structural issues.

Understand the impact of certain mental health disorders. Eating disorders such as anorexia or bulimia can disrupt the menstrual cycle due to the effects of malnutrition over extended periods.
- Anorexia is characterized by severe restriction of food intake, while bulimia involves binge eating followed by purging through vomiting or laxative use.
- Missed periods are a diagnostic criterion for anorexia, while bulimia patients may only miss half of their menstrual cycles.
- If you suspect you have an eating disorder, seek medical help immediately, as eating disorders can be life-threatening.
Recognize the Signs of Menopause

Understand the Basics of Menopause. To determine whether you're experiencing menopause, it's crucial to comprehend the basic physiological processes behind it.
- Menopause marks the permanent end of your menstrual cycles. Your ovaries stop producing estrogen and progesterone. In the years leading up to menopause, you might experience common symptoms like hot flashes, which are often mistaken for menopause itself. However, this is usually part of the transitional phase called perimenopause.
- Generally, women enter menopause between ages 40 and 55, with an average age of 51. However, menopause can occur earlier, particularly if you've had surgery to remove reproductive organs.
- Menopause is a natural process and doesn’t require medical treatment. However, hormone replacement therapy can be beneficial for many women during the perimenopausal transition. Speak to your doctor if you feel this treatment could help with physical or emotional symptoms during menopause.

Track the time since your last period. Depending on how long it's been since your last menstrual cycle, you may not yet be in menopause. In this case, you will likely have a period before it stops permanently.
- Irregular cycles are common during perimenopause. Missing a few consecutive periods may not necessarily mean you're in menopause, so it’s important to consult a doctor if you miss several periods in a row. You need to rule out other health issues, such as cancer, before assuming you’re entering menopause.
- Tracking your monthly cycles is a great way to keep tabs on when you might be late. It's a good idea to start monitoring your cycle regularly once you hit your 40s, as menopause can begin during this time. A simple mark on your calendar can be a helpful indicator of when your cycle starts.
- If your periods have stopped for a year, it means you are in menopause, and your period will not return.
- If you experience bleeding after a year without periods, you should see a doctor immediately. This could be postmenopausal bleeding, which requires prompt evaluation.

Monitor other symptoms. It's important to track any symptoms you may experience to understand when you've entered the perimenopausal phase. Recognizing the perimenopausal stage helps you identify when true menopause occurs.
- Hot flashes are a common symptom during perimenopause. It’s a sudden feeling of heat, often in the upper body, and red spots may appear on your skin and arms.
- Your sexual desire may change during perimenopause. Hormonal shifts may either increase or decrease your libido. However, sexual activity may become uncomfortable due to vaginal dryness, a common issue during menopause.
- Vaginal and urinary tract infections may occur more frequently as you approach menopause.
- Other symptoms include trouble sleeping, mood changes, concentration difficulties, and weight gain around the abdomen.
Search for natural causes.

Take a pregnancy test. During pregnancy, women do not menstruate. Although you might experience light spotting, you will not have a regular period while pregnant. If your period stops suddenly, pregnancy could be the cause.
- Many home pregnancy tests can provide accurate results as early as the first day of a missed period. Most pregnancy test kits use a small stick that you dip into urine and wait a few minutes to read the result. Depending on the test, a positive result will either show a color change or the words 'pregnant' on the screen.
- Home pregnancy tests are generally very accurate, with most being 99% effective. However, some may not be as reliable. It may be worth taking the test twice to ensure accuracy.
- You should visit your doctor as soon as possible to confirm pregnancy with a blood test.

Consider the impact of breastfeeding. Typically, menstruation will return after childbirth. However, if you're breastfeeding, your menstrual cycle may not resume immediately. Usually, breastfeeding can delay the first few cycles post-birth. If your period remains delayed for a longer period, it's recommended to consult with a doctor to rule out other possible causes.

Understand that menstruation may be irregular after pregnancy. It takes some time for menstrual cycles to normalize after childbirth. This doesn't mean that your periods will stop for an extended period.
- Generally, your period will show some spotting once you stop breastfeeding. Your cycle should return to normal within a few months.
- Your periods may involve larger, unusual blood clots in the first few cycles after birth. This is typically not a cause for concern, but if you experience heavy bleeding along with clots for a week or more, it's best to seek medical attention.
- Remember that even if you don’t notice any signs of menstruation, you could still conceive shortly after giving birth. Make sure to use contraception if you don't wish to become pregnant again immediately, even if you're not experiencing menstrual symptoms.
Advice
- Consult a doctor if your period stops for more than 90 days and cannot be explained by lifestyle changes, pregnancy, menopause, or other factors.
- There are two types of amenorrhea – primary and secondary. Primary amenorrhea occurs when a woman has never had a period, while secondary amenorrhea is when a woman stops menstruating after having regular periods. Primary amenorrhea is often caused by structural abnormalities or chromosomal issues, while most cases of secondary amenorrhea are due to pregnancy.
