Spotting Before Your Menstrual Cycle: Causes and Concerns - Obstetrics and Gynecology

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Spotting before the menstrual cycle?


Hello, Doctor.
Last month, my period was delayed by a week, but I only experienced light spotting for four days.
Two weeks later, I felt like my period was starting again, but it was darker and heavier than usual.
This month, I had some light spotting again just before my expected period, which is due in two days.
My periods have always been regular and normal, so I'm not sure if the delay last month was due to returning to my home country and the increased stress from many exams.

Kat, 20~29 year old female. Ask Date: 2020/10/07

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, it is possible that there is an insufficient level of progesterone.
If there is no improvement next month, it is advisable to consult a gynecologist.
Wishing you good health.

Reply Date: 2020/10/07

More Info


Spotting before your menstrual cycle can be a common concern for many women, and it can arise from a variety of causes. Given your history of having regular menstrual cycles and the recent changes you've experienced, let's explore some potential reasons for the spotting and what it might indicate.

Firstly, it's important to understand that spotting, or light bleeding that occurs outside of your regular menstrual period, can be influenced by several factors. One of the most common causes is hormonal fluctuations. Stress, as you mentioned, can significantly impact your hormonal balance. When you're under stress, your body produces higher levels of cortisol, which can interfere with the normal functioning of your reproductive hormones. This disruption can lead to irregularities in your menstrual cycle, including delayed periods or unexpected spotting.

Another potential cause of spotting is ovulation. Some women experience what is known as ovulation bleeding, which can occur around the midpoint of their cycle when an egg is released from the ovary. This type of spotting is usually light and may last for a few hours to a couple of days. Given that you mentioned your menstrual cycle was delayed last month and that you experienced spotting again this month, it's possible that the spotting could be related to ovulation, especially if it coincides with the time you typically ovulate.

Additionally, changes in your environment, such as returning to a different country, can also affect your cycle. Traveling can introduce various stressors, including changes in diet, sleep patterns, and daily routines, all of which can contribute to hormonal imbalances.
It's also worth considering other factors such as changes in birth control methods, if applicable. Hormonal contraceptives can sometimes cause spotting, especially when starting or changing methods. If you've recently started or changed any form of birth control, this could be a contributing factor.

In some cases, spotting can be a sign of underlying health issues, such as fibroids, polyps, or even infections. However, given that your menstrual cycles have been regular and normal until recently, these may be less likely causes. If the spotting persists, becomes heavier, or is accompanied by other symptoms such as pain or unusual discharge, it would be advisable to consult a healthcare provider for further evaluation.

In summary, the spotting you're experiencing could be attributed to stress, hormonal fluctuations, or even ovulation. Since your menstrual cycle has been regular in the past, these changes may be temporary. However, if you continue to experience irregularities or have concerns about your menstrual health, seeking medical advice would be beneficial. A healthcare provider can perform a thorough assessment, including a physical examination and possibly some tests, to determine the underlying cause of your symptoms and provide appropriate guidance or treatment.

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