STD Transmission Risks: Your Questions Answered

Infectious disease issues?

Hello, doctor.
I have two questions to ask you.
My boyfriend had a small spot on his glans about a year ago, and it was diagnosed as genital warts.
I got checked afterward and was fine, but we haven't had sexual intercourse since then.
Today, I noticed a slight abrasion on my toe.
I have a habit of squeezing out ointment and using a cotton swab to apply it, but I later found out that my boyfriend also used a cotton swab with ointment on his glans.
Although he hasn't had a recurrence since January, I want to ask if it's possible for me to get infected through my toe.
I quickly washed it off with water and body wash and only applied iodine afterward.
The other thing is that I read online that if someone with a sexually transmitted infection (STI) sits in a public place like the subway, the next person who sits down can get infected.
Is this misinformation?

And, 20~29 year old female. Ask Date: 2020/12/16

Dr. Hong Yuanbin reply Internal Medicine

Hello,
1.
Regarding the issue with cotton swabs, theoretically, cotton swabs are single-use disposable items and should not cause infections.
As for the toes, they are not a common area for warts to become infected, so it is unlikely to lead to an infection.

2.
Taking the subway does not lead to the transmission of warts; this is misinformation.
Thank you for your inquiry.

Reply Date: 2020/12/16

More Info

Understanding the risks associated with sexually transmitted diseases (STDs) is crucial for maintaining sexual health and preventing transmission. Your concerns about potential transmission through non-sexual contact and the misconceptions surrounding STD transmission are valid and deserve careful consideration.

Firstly, regarding your concern about the possibility of contracting an STD through your toe after using a cotton swab that your boyfriend had previously used on his genital area, it is important to clarify how STDs are typically transmitted. Most STDs, including human papillomavirus (HPV), which is commonly associated with genital warts (or "cauliflower" lesions), are primarily transmitted through direct skin-to-skin contact during sexual activities. While HPV can survive outside the body for a short period, the likelihood of transmission through indirect contact, such as touching a surface or an object that has been in contact with an infected area, is extremely low.
In your case, even if the cotton swab had come into contact with your boyfriend's genital area, the risk of you contracting HPV through a minor cut on your toe is negligible. HPV is not typically transmitted through casual contact or through surfaces, and your immediate washing and disinfection of the area further reduces any potential risk. However, if you notice any unusual symptoms or changes in your health, it is always advisable to consult a healthcare professional for further evaluation.

Now, addressing the second part of your question regarding the myth that sitting on a public transport seat previously occupied by someone with an STD could lead to transmission, this is indeed a misconception. STDs are not transmitted through inanimate objects or surfaces. The pathogens that cause STDs require specific conditions to survive and typically do not remain viable on surfaces for extended periods. The primary mode of transmission remains through direct sexual contact, including vaginal, anal, or oral sex.
In summary, your risk of contracting an STD through the scenarios you described is very low. It is essential to maintain open communication with your partner about sexual health and to engage in regular screenings, especially if there are any concerns about STDs. Practicing safe sex, including the use of condoms, can significantly reduce the risk of transmission of STDs.
If you have further concerns or experience any symptoms, such as unusual lesions, discharge, or discomfort, it is crucial to seek medical advice promptly. Regular check-ups and consultations with a healthcare provider can help ensure your sexual health is monitored and maintained effectively.

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