UTIs are relatively common infections of the urinary tract. Usually try not to have intercourse during a UTI episode to avoid aggravating the condition. The specific to analyze. 1, women’s suffering from urethritis, if not actively treated will complicate the infection of the reproductive system, this time if intercourse, due to the friction of the penis will aggravate the inflammation of the vagina, is not conducive to treatment. 2, male urethritis when having sex, the bacteria in the urethra may enter the vagina of women along the urethra, leading to infection of the uterine cavity. It affects the future life and work. So it is best to have sex only after the urethritis is treated. 3, if suffering from urethritis without active treatment, can be secondary to systemic infection, causing fever, vomiting, mental discomfort, physical weakness, this time the libido is relatively low, so there is little pleasure in intercourse, affecting the harmony of sexual life, is not conducive to the exchange of feelings of the couple. In summary, it is not recommended to have intercourse when you have a UTI attack. You must actively use antibiotic medication, and pay attention to drinking more water and eating more fresh vegetables. After treatment, you must pay attention to personal hygiene to avoid recurrence.