Does Urethritis Medication Affect Menstrual Cycle and Pregnancy Chances?

Will medications for urethritis affect menstruation?

Hello Doctor, I was treated for urethritis on May 1 and took medication for a week.
On May 7, I sought medical attention again for folliculitis in the genital area and received more medication.
I had sexual intercourse with my boyfriend on May 19 (withdrawal method), and my period, which was supposed to arrive on the 24th, has not come.
What is the likelihood of pregnancy? Could the medication be affecting my menstrual cycle?

You, 20~29 year old female. Ask Date: 2019/05/27

Dr. Huang Jianzhong reply Obstetrics and Gynecology

On May 1, I was treated for urethritis and took medication for a week.
On May 7, I sought medical attention again for folliculitis in the genital area and received more medication.
I had sexual intercourse with my boyfriend on May 19 (withdrawal method), and my period, which was supposed to arrive on the 24th, has not come.
What is the likelihood of pregnancy? Could the medication affect my menstrual cycle? Answer: Take a pregnancy test to check.

Reply Date: 2019/05/27

More Info

When considering the effects of urethritis medication on the menstrual cycle and the chances of pregnancy, it is essential to understand both the medications involved and the physiological processes at play.

Firstly, medications prescribed for urethritis, such as antibiotics, are generally not known to have a direct impact on the menstrual cycle. Antibiotics work by targeting bacterial infections and do not typically interfere with the hormonal regulation of the menstrual cycle. However, some women may experience changes in their menstrual cycle due to various factors, including stress, illness, or changes in routine, which could coincide with the timing of medication use.

In your case, you mentioned that you took medication for urethritis from May 1 for a week and then sought treatment again on May 7 for folliculitis. The timing of your sexual activity on May 19, followed by a missed period on May 24, raises the question of potential pregnancy. Since you engaged in sexual activity with withdrawal (pull-out method), the chances of pregnancy are lower compared to unprotected intercourse, but it is still possible for sperm to be present and lead to conception.

Regarding the missed period, several factors could contribute to this, including:
1. Stress and Anxiety: The stress of dealing with infections and the uncertainty surrounding your health can affect your hormonal balance, potentially delaying your period.

2. Illness: The infections you were treating could also have an impact on your menstrual cycle. The body sometimes reacts to illness by altering its normal functions, including the menstrual cycle.

3. Hormonal Fluctuations: Even without medication, hormonal fluctuations can lead to irregularities in the menstrual cycle.
4. Pregnancy: If you are concerned about the possibility of being pregnant, it would be prudent to take a home pregnancy test. These tests are generally reliable and can provide you with clarity regarding your situation.

If the test is positive, it is advisable to consult with a healthcare provider to discuss your options and any necessary prenatal care. If the test is negative and your period does not arrive soon, it may be worth discussing with your doctor to rule out any underlying issues.

In summary, while urethritis medications are unlikely to directly affect your menstrual cycle, various factors related to health, stress, and hormonal changes can contribute to irregularities. If you suspect pregnancy, taking a test is the best course of action, and if you have ongoing concerns about your menstrual cycle or reproductive health, consulting with a healthcare provider is recommended.

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