Delayed Menstruation: Could Painkillers Be the Cause? - Obstetrics and Gynecology

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Delayed menstruation?


I had my wisdom tooth extracted at the beginning of the month and took painkillers and antibiotics.
I also went to the emergency room once for pain relief.
My menstrual period is now almost a week late.
Could this delay be due to taking painkillers on those two occasions? I took a pregnancy test around noon, and it showed one line, so it should not be a pregnancy issue.

Xiao Xiao, 20~29 year old female. Ask Date: 2015/11/24

Dr. Lin Wenbin reply Obstetrics and Gynecology


Menstrual delay is related to physiological stress; please consult a physician for examination.

Reply Date: 2015/11/24

More Info


Delayed menstruation can be a source of concern for many women, and it’s understandable to seek answers when your cycle is disrupted. In your case, you mentioned that you had your wisdom teeth extracted and took painkillers and antibiotics, which raises the question of whether these medications could be responsible for your delayed period.

First, it's important to note that various factors can influence the menstrual cycle, including stress, hormonal fluctuations, changes in weight, and medical conditions. Painkillers, particularly nonsteroidal anti-inflammatory drugs (NSAIDs) like ibuprofen, are commonly used to manage pain and inflammation. While these medications can affect the menstrual cycle in some women, they are not typically known to cause significant delays in menstruation. However, they can sometimes lead to changes in menstrual flow or cramping, which might be perceived as irregularities.

Antibiotics, on the other hand, are less likely to directly affect your menstrual cycle. However, they can disrupt the balance of bacteria in your body, which may indirectly influence hormonal levels and menstrual regularity. It’s also worth noting that certain antibiotics can interact with hormonal contraceptives, potentially leading to unexpected bleeding or changes in your cycle, but this is less relevant if you are not on birth control.

Given that you have taken painkillers and antibiotics recently, it’s possible that the stress of the dental procedure, combined with any pain or discomfort you experienced, could have contributed to your delayed menstruation. Stress is a well-known factor that can impact the hypothalamus, the part of the brain that regulates hormones related to the menstrual cycle. If you were anxious or stressed about the dental work or the subsequent recovery, this could have played a role in delaying your period.

You mentioned that you took a pregnancy test and it showed one line, which typically indicates that you are not pregnant. This is a reassuring sign, but if your period does not arrive soon, it may be wise to consult with a healthcare professional. They can perform a more thorough evaluation to rule out other potential causes of delayed menstruation, such as hormonal imbalances, thyroid issues, or other underlying health conditions.

In summary, while it is unlikely that the painkillers and antibiotics are the direct cause of your delayed menstruation, other factors such as stress and hormonal fluctuations could be at play. If your period does not start soon or if you have any other concerning symptoms, I recommend reaching out to your healthcare provider for further guidance. They can help you understand what might be happening with your body and provide appropriate care or treatment if necessary. Remember, it’s always better to seek professional advice when it comes to your health, especially when it involves changes in your menstrual cycle.

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