Does Unpleasant Odor in Women Indicate a Sexually Transmitted Infection? - Urology

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I would like to ask if an unusual odor from a woman's genital area indicates the presence of a sexually transmitted infection (STI)?


Hello, Doctor.
I would like to ask a question.
On the 2nd, I had sexual relations with a girl.
At first, while showering and touching each other in bed, I didn't notice any smell.
However, when she turned her back to me, I detected a foul odor coming from her genital area (there was no noticeable discharge when I touched her).
Although I wore a condom during penetration, she performed oral sex on me without a condom (the process lasted less than 30 seconds, and I did not ejaculate).
I am really concerned about this unpleasant odor.
Is it likely due to poor hygiene, or could there be other reasons? Is this situation mostly related to inadequate cleaning? I want to get tested for STDs, but I have to wait three months for accurate results, and this waiting period is really difficult.

Mr. Chen, 20~29 year old female. Ask Date: 2016/01/08

Dr. Li Yilun reply Urology


It is not possible to diagnose based on smell.
If you are feeling unwell, please seek medical attention in person.

Reply Date: 2016/01/08

More Info


Unpleasant odor in women can indeed be a cause for concern, particularly when it comes to sexually transmitted infections (STIs). However, it is essential to understand that not all odors are indicative of an infection. Various factors can contribute to an unusual smell, including hygiene practices, hormonal changes, and the presence of certain infections.

Firstly, it’s important to note that the vagina has a natural flora that helps maintain its health. This flora can be disrupted by various factors, leading to changes in odor. For instance, bacterial vaginosis (BV) is a common condition that can cause a fishy odor, particularly after sexual intercourse. It occurs when there is an imbalance in the normal bacteria present in the vagina. Similarly, yeast infections, which are often characterized by itching and a thick, white discharge, can also lead to an unusual smell, although it may not always be as pronounced.

In your case, since you mentioned that the odor was noticeable when your partner was in a certain position, it could be related to hygiene or the natural scent of her body. It’s not uncommon for individuals to have a unique scent, and this can vary based on factors such as diet, hormonal fluctuations, and personal hygiene practices. If she has not been maintaining proper hygiene, this could contribute to an unpleasant odor.

Regarding your concern about STIs, while some infections can cause changes in odor, many STIs can be asymptomatic, meaning they do not always present noticeable symptoms. For example, chlamydia and gonorrhea can exist without any obvious signs, but they can still be transmitted. The fact that you used a condom during intercourse provides a level of protection against many STIs, but it is important to remember that certain infections can still be transmitted through oral sex, especially if there are cuts or sores present.

Given that your partner performed oral sex without a condom, there is a potential risk for transmission of infections, including those that may not present with symptoms. It is wise to consider getting tested for STIs, especially if you have concerns about exposure. While it is true that some tests may require a waiting period for accurate results, many clinics offer rapid testing for certain infections, which can provide peace of mind sooner.

In the meantime, it’s crucial to communicate openly with your partner about any concerns regarding hygiene and health. Encourage her to seek medical advice if the odor persists or if she experiences any other symptoms, such as itching, burning, or unusual discharge. It’s also beneficial for both of you to engage in regular health check-ups and STI screenings, especially if you have multiple partners.

In conclusion, while an unpleasant odor can sometimes indicate an infection, it is not always the case. Factors such as hygiene, hormonal changes, and individual body chemistry can play significant roles. If you are concerned about potential STIs, it is advisable to consult a healthcare provider for testing and further guidance. Open communication with your partner about health and hygiene is also essential for maintaining a healthy sexual relationship.

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