Irregular Menstrual Cycles: Common Questions Answered

Question?

Doctor, may I ask why I have my period twice a month? Since I was young, for example, I would start on June 1 and end on June 8, then have my period again on June 22.
I’m wondering if it’s normal for me to have my period at the beginning and end of each month.
Why hasn’t my period come in July yet? Does this mean I will have it at the end of the month? I usually have it on the 1st or definitely by the 8th, but now it’s already the 14th and nothing has happened.

Youyou, 20~29 year old female. Ask Date: 2004/07/14

Dr. Zhan Deqin reply Obstetrics and Gynecology

It is important to observe whether the menstrual flow is consistent in volume and duration each time.
If menstruation lasts for a week in January and then only for two to three days on the 22nd, it may not be considered a regular period.
If both instances are similar, the menstrual cycle may be too short.
If menstruation is expected but does not occur, it is advisable to take a pregnancy test first.

Reply Date: 2004/07/14

More Info

Irregular menstrual cycles can be a source of confusion and concern for many women. Your experience of having two menstrual periods in one month, as well as the uncertainty of when your next period will arrive, is not uncommon. Let's break down the potential reasons for these irregularities and what they might mean for your health.

Firstly, it's important to understand that a typical menstrual cycle ranges from 21 to 35 days, with the average being around 28 days. However, many factors can influence the regularity of your cycle, including hormonal fluctuations, stress, lifestyle changes, and underlying health conditions.

In your case, experiencing two periods in one month could be attributed to a shorter cycle. For instance, if your cycle is consistently around 22 days, you might find yourself menstruating at the beginning and end of the month. This can happen due to various reasons, such as:
1. Hormonal Imbalances: Hormones like estrogen and progesterone regulate your menstrual cycle. An imbalance can lead to irregular cycles, causing you to have more frequent periods.

2. Stress: High levels of stress can affect your hormonal balance, leading to changes in your menstrual cycle. Stress can cause your body to produce more cortisol, which can interfere with the hormones that regulate your cycle.

3. Weight Changes: Significant weight loss or gain can impact your menstrual cycle. Body fat plays a role in estrogen production, and fluctuations can lead to irregularities.

4. Polycystic Ovary Syndrome (PCOS): This condition is characterized by hormonal imbalances and can lead to irregular periods. Women with PCOS may experience infrequent or prolonged menstrual cycles.

5. Thyroid Issues: Both hyperthyroidism and hypothyroidism can affect your menstrual cycle. The thyroid gland regulates metabolism and can influence menstrual regularity.

6. Age: If you are in your late teens or early twenties, your body may still be adjusting to hormonal changes, leading to irregular cycles. Similarly, as women approach menopause, they may experience changes in their menstrual patterns.

Regarding your concern about not having your period in July, it’s possible that your body is still adjusting to the changes in your cycle. If you typically have a regular pattern but suddenly experience a missed period, it could be due to stress, illness, or other factors affecting your hormonal balance.

If you find that your cycles remain irregular or if you experience other symptoms such as severe pain, heavy bleeding, or significant changes in your menstrual pattern, it would be wise to consult a healthcare provider. They may recommend tests to check for hormonal imbalances, thyroid function, or other underlying conditions.

In summary, while having two periods in one month can be concerning, it is not uncommon and can be influenced by various factors. Monitoring your cycle and any accompanying symptoms is essential. If irregularities persist, seeking medical advice will help you understand your situation better and ensure your reproductive health is in check. Remember, every woman's body is different, and what is normal for one person may not be for another.

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