Can Anal Bleeding After Intercourse Lead to STDs? - Urology

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Is it possible to contract a sexually transmitted infection (STI) after anal intercourse that results in bleeding?


Hello, doctor.
Medical history: A male engaged in anal intercourse without lubrication (only used saliva once) but used a condom throughout the process.
Afterward, there was bleeding, and a few days later, pain began, along with white mucus in the stool and slight bleeding.
I would like to ask if using saliva as lubrication can transmit sexually transmitted infections (STIs)? Does the above medical history indicate an STI or is it caused by anal fissures?

Mr. Chen, 20~29 year old female. Ask Date: 2023/10/21

Dr. Du Shixi reply Urology


Hello: There is a possibility of transmission with any contact with bodily fluids, so please be cautious.
Wishing you good health.

Reply Date: 2023/10/21

More Info


Anal bleeding after intercourse can be concerning, and it’s important to understand the potential causes and implications. Based on your description, it seems that you engaged in anal intercourse without adequate lubrication, which can lead to trauma in the anal region. The use of saliva as a lubricant is not recommended as it is not an effective or safe alternative to commercial lubricants, and it can introduce bacteria that may lead to infections.

When anal intercourse occurs, especially without sufficient lubrication, it can cause micro-tears or fissures in the anal lining. This can result in bleeding and pain, which you have experienced. The presence of white mucus in your stool and slight bleeding could indicate irritation or inflammation in the anal area, possibly due to anal fissures or hemorrhoids. However, these symptoms can also be associated with sexually transmitted infections (STIs), particularly if there was any exposure to pathogens.

Regarding your concern about STIs, while using a condom significantly reduces the risk of transmission, it does not eliminate it entirely. If the condom was intact throughout the intercourse, the risk of transmitting STIs is lower, but not zero. Saliva can carry certain pathogens, and if there was any contact with the anal area or if the condom was compromised in any way, there could be a risk of infection. Common STIs that can be transmitted through anal intercourse include gonorrhea, chlamydia, and HIV, among others.

Given your symptoms of bleeding and pain, it is advisable to seek medical attention. A healthcare provider can perform a thorough examination to determine whether you have anal fissures, hemorrhoids, or any signs of infection. They may also recommend tests for STIs to rule out any infections, especially if you have concerns about exposure.

In summary, while the use of a condom reduces the risk of STIs, it is crucial to consider the potential for trauma from inadequate lubrication during anal intercourse. The symptoms you are experiencing could be due to anal fissures or irritation, but they could also indicate an STI. It is best to consult with a healthcare professional for an accurate diagnosis and appropriate treatment. They can provide guidance on managing your symptoms and addressing any concerns about STIs.

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