While having sex, I've noticed random cuts on the skin of my penis, and my partner experiences a burning sensation around the opening of her vagina. Could this be something serious? Sometimes we don't use protection. Also, I'm curious if there's a chance that kits might give incorrect results. Can you help with this?
The random cuts on your penis skin and your partner's burning sensation around the vaginal opening during sex could be indicative of a sexually transmitted infection (STI), such as herpes, HPV, or genital warts, or other conditions like genital eczema, psoriasis, or dermatitis; the lack of protection during sex increases the risk of STI transmission; regarding the accuracy of STI test kits, while they are generally reliable, there is a small chance of false negatives or false positives, so it's essential to consult a urologist