A 24-year-old from Ha Noi asks if using antiseptic mouthwash after oral sex can prevent sexually transmitted infections, especially gonorrhea.

Is having sex more than five times a week excessive, potentially leading to a reduced lifespan, sperm dilution, and eventually affecting fertility? (Long, 26, Hanoi)

Three months after breaking up with his girlfriend, a 24-year-old man experienced a psychological crisis and gradually lost his desire for women.

During his first intimate encounter with a woman he met on Facebook, a 30-year-old man, who used a condom but engaged in oral foreplay, experienced painful urination and genital discharge, later surprisingly discovering he had gonorrhea.

A 34-year-old man, married for six years, sought medical advice after noticing a year ago that he was interested in role-playing scenarios where his wife took a more dominant role, and he was more receptive.

Does an irregular sleep schedule increase the risk of sexual dysfunction and decreased libido? (Tung, 27 years old, Hanoi)

My girlfriend often feels gloomy, tired, and unhappy after sex. Could this be a sign of decreased libido or a medical condition requiring examination? (Hoang, 26, Hanoi).