Fishy Odor During Menstruation: Is It Vaginitis?

The term "genital area" refers to the external reproductive organs and surrounding

About four to five days after the onset of menstruation (by this time, I only have pink discharge), the discharge has a strong fishy odor.
However, once my period is completely over, the odor disappears.
Could this be vaginitis? There is no significant itching.

Elisa, 20~29 year old female. Ask Date: 2015/07/19

Dr. Lü Lizheng reply Obstetrics and Gynecology

The response suggests that this is likely bacterial vaginosis, which typically has a fishy odor.
It is recommended to seek treatment at a hospital.
Sincerely, Dr.
Lu Li-Cheng, Taoyuan Hospital.

Reply Date: 2015/07/19

More Info

The presence of a fishy odor during menstruation, particularly when accompanied by changes in discharge, can indeed raise concerns about potential vaginal infections, such as bacterial vaginosis (BV). However, it is essential to understand the context and the characteristics of the discharge to make a more informed assessment.

Bacterial vaginosis is a common condition caused by an imbalance in the normal bacteria found in the vagina. It is characterized by a thin, grayish-white discharge that often has a fishy odor, especially after sexual intercourse or during menstruation. While BV is not classified as a sexually transmitted infection, it can be influenced by sexual activity and other factors such as douching, which disrupts the natural flora of the vagina.

In your case, the fishy odor appearing around the time of menstruation, particularly when the discharge is minimal and pinkish, could suggest that the normal vaginal flora is being altered. The absence of itching or irritation is a positive sign, as these symptoms are often associated with other types of infections, such as yeast infections or sexually transmitted infections (STIs), which typically present with additional symptoms like itching, burning, or abnormal discharge.

It is also worth noting that hormonal changes during menstruation can affect the vaginal environment. The pH of the vagina can become more alkaline during menstruation, which may contribute to the development of a fishy odor. This change can be exacerbated by the presence of menstrual blood, which can alter the balance of bacteria.

If the odor persists beyond your menstrual period or if you notice any other symptoms such as increased discharge, itching, or discomfort, it would be advisable to consult a healthcare provider. They can perform a pelvic examination and possibly take a sample of the discharge for laboratory analysis to determine if there is an infection present and recommend appropriate treatment.

In summary, while the fishy odor you are experiencing could be indicative of bacterial vaginosis, it is not definitive without further evaluation. Maintaining good vaginal hygiene, avoiding douching, and wearing breathable cotton underwear can help support vaginal health. If you have any concerns or if the symptoms change, seeking medical advice is the best course of action to ensure proper diagnosis and treatment.

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