Risk of STDs from Oral Sex: What You Need to Know - Urology

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The risk of sexually transmitted infections (STIs) for the recipient of oral sex?


Hello, doctor! A few days ago, I had oral sex with an online acquaintance, where I was the recipient.
We only kissed and did not exchange any other bodily fluids.
Afterward, I confirmed that there were no wounds or bleeding on my genitals or in my mouth.
I noticed that the other person had many red spots and peeling skin on their hands, and I am very worried that they might have syphilis or other sexually transmitted infections.
I would like to ask, what is the likelihood that I have been infected? Thank you.

Ke Bao, 20~29 year old female. Ask Date: 2021/04/10

Dr. Du Shixi reply Urology


Hello: The following standards can be used to evaluate the risk levels of sexual behaviors:
- Low-risk sexual behaviors: This includes mutual masturbation, mutual rubbing, deep kissing, bondage, protected deep foreplay, oral sex with condoms or dental dams, anal intercourse, and vaginal intercourse.

- Moderate-risk sexual behaviors: This includes withdrawal method (coitus interruptus), sharing sex toys, unprotected deep foreplay, oral sex before ejaculation, and oral sex during menstruation.

- High-risk sexual behaviors: This includes unprotected anal intercourse, unprotected vaginal intercourse, oral sex during menstruation, retaining semen in the mouth, sharing needles, syringes, and bleeding during sexual activity.
This should be classified as moderate risk.
Wishing you good health.

Reply Date: 2021/04/10

More Info


When it comes to the risk of sexually transmitted diseases (STDs) from oral sex, it's important to understand that while the risk is generally lower compared to vaginal or anal intercourse, it is not negligible. Oral sex can still transmit various STDs, including but not limited to syphilis, gonorrhea, chlamydia, herpes, and human papillomavirus (HPV).
In your specific situation, you mentioned that you were the receptive partner during oral sex and that there was no exchange of bodily fluids apart from kissing. You also noted that both your genital area and mouth were free from cuts or bleeding. This is a positive factor, as open wounds can increase the risk of transmission. However, the presence of red spots and peeling skin on your partner's hands raises some concerns. While these symptoms could be indicative of a skin condition or an allergic reaction, they could also potentially signal an STD, especially if they are associated with other symptoms.

The risk of contracting an STD from oral sex is influenced by several factors:
1. Type of Sexual Activity: Oral sex is considered a moderate-risk activity for STDs. Certain infections, such as herpes and HPV, can be transmitted even in the absence of visible symptoms.

2. Presence of Symptoms: If your partner has visible symptoms, such as lesions or rashes, there is a higher risk of transmission. It's important to note that many STDs can be asymptomatic, meaning that a person can be infected without showing any signs.

3. Oral Health: Maintaining good oral hygiene is crucial. Conditions such as gum disease or oral cuts can increase susceptibility to infections during oral sex.

4. Type of STD: Some STDs are more easily transmitted than others. For example, herpes can be transmitted through skin-to-skin contact, even if there are no visible sores.

5. Testing and Communication: Open communication with sexual partners about STD testing and sexual health is vital. Regular testing is recommended for sexually active individuals, especially if they have multiple partners.

Given your concerns, it would be prudent to consult a healthcare professional for a thorough evaluation. They may recommend STD testing, even if you are not currently experiencing symptoms. Testing can provide peace of mind and ensure that any potential infections are identified and treated promptly.

In summary, while the risk of contracting an STD from oral sex is lower than from other forms of sexual activity, it is still present. Factors such as the presence of symptoms in your partner, your own oral health, and the nature of the sexual activity all play a role in assessing your risk. Regular testing and open communication with partners are key components of maintaining sexual health. If you have any lingering concerns or symptoms, seeking medical advice is always the best course of action.

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