Delayed Period by 12 Days: Could Anesthesia Be the Cause? - Obstetrics and Gynecology

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Menstruation is delayed by 12 days despite not being pregnant?


I am not pregnant, but my period is 12 days late (my cycle has been consistently 35 to 37 days for the past year, never exceeding 40 days).
I had an incident in July that required two surgeries under general anesthesia, and I was hospitalized until the end of July.
My periods in July, August, and September were normal, so I am unsure why October is so irregular.
Could this be related to the anesthesia? Does only general anesthesia have this effect, or could local anesthesia also be a factor? Or is it no longer relevant? Currently, I have little discharge; I was expecting my period on October 13, and on October 6, the discharge was white and thin, stretching when wiped with toilet paper.
Could this indicate ovulation? My expected ovulation date was September 29.

yoyo, 20~29 year old female. Ask Date: 2015/10/25

Dr. Lü Lizheng reply Obstetrics and Gynecology


The irregular menstruation may be due to various causes.
Since it has been three months since the anesthesia, it is unlikely to be related to it.
It is advisable to seek medical attention and discuss this with a physician.
Sincerely, Dr.
Li-Cheng Lu, Taoyuan Hospital.

Reply Date: 2015/10/25

More Info


Delayed menstruation can be a source of concern for many women, especially when it deviates from their regular cycle. In your case, a delay of 12 days is indeed noteworthy, particularly since your menstrual cycle has been consistent over the past year, ranging from 35 to 37 days. It’s understandable to wonder if recent medical procedures, such as anesthesia, could be a contributing factor.

Firstly, it's important to clarify that both general and local anesthesia can have various effects on the body, but they are not typically known to directly cause menstrual delays. General anesthesia, which you experienced during your surgeries, can lead to temporary hormonal changes due to the stress of surgery, recovery, and the medications used. However, these effects are usually short-lived and should not cause a significant delay in menstruation.

Local anesthesia, on the other hand, is less likely to have any systemic effects that would influence your menstrual cycle. It primarily affects the area where it is administered and does not typically enter the bloodstream in significant amounts to cause hormonal changes. Therefore, it is unlikely that local anesthesia would contribute to a delayed period.

That said, several factors could explain your delayed menstruation. Stress is a significant factor that can impact your menstrual cycle. The stress of undergoing surgery, recovery, and any associated anxiety can disrupt the hormonal balance that regulates your cycle. Additionally, changes in weight, diet, exercise, and even sleep patterns can also affect menstrual regularity.

Regarding the white discharge you mentioned on October 6, it could indeed be related to your ovulation cycle. The presence of clear, stretchy, or white discharge is often associated with ovulation, which typically occurs about 14 days before your next expected period. If your expected ovulation date was September 29, the discharge you observed could indicate that your body was preparing for ovulation, even if your period has been delayed.

If you are not pregnant and have ruled out other potential causes of delayed menstruation, such as hormonal imbalances, thyroid issues, or polycystic ovary syndrome (PCOS), it may simply be a temporary disruption in your cycle. However, if your period does not arrive soon or if you experience other concerning symptoms, it would be wise to consult with a healthcare provider. They can perform a thorough evaluation, including blood tests to check hormone levels and other potential underlying issues.

In summary, while anesthesia can have various effects on the body, it is unlikely to be the direct cause of your delayed menstruation. Stress and other lifestyle factors are more plausible explanations. Monitoring your cycle and any accompanying symptoms is essential, and if the delay persists, seeking medical advice would be the best course of action.

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