Blood in the seminal vesicles is an indication of vesiculitis in men. In this case, it is recommended to go to the hospital for an ultrasound examination of the seminal vesicles to determine whether there is thickening of the seminal vesicle wall and whether there are turbid-like changes in the seminal vesicles, and the ultrasound can also detect whether there are stones in the seminal vesicles and whether there is a risk of seminal vesicle cancer. After the examination, a preliminary judgment can be made. If it is seminal vesiculitis, it is recommended to drink more water, urinate more often, eat a light diet and take broad-spectrum antibacterial agents, usually 1-2 weeks, to achieve a cure. It is recommended that you should have regular semen discharge, do not masturbate frequently, do not have multiple sexual intercourse in a short period of time, which can easily lead to inflammation of the seminal vesicles. If you repeatedly have hematospermia, you must have a vesiculoscopy.