It is best not to have sex during UTI because having sex during UTI is not conducive to the healing of the infection and can easily lead to cross-infection of the urinary and reproductive systems, so it is best not to have sex until the UTI is healed, and if you have a gynecological infection or male reproductive system infection, sex is likely to be the cause of recurrent UTI. The actual UTI and the reproductive system infection are not to have sex until they are cured, and if the sexual partner has symptoms of the genitourinary system infection, anti-infection treatment should be given at the same time. The cross-infection of the genitourinary system is an important cause of chronic UTIs or recurrent, prolonged UTIs.