Playing fly suddenly hit a lot of water is likely to be caused by too much sex or masturbation, or it may be caused by chronic seminal vesiculitis. Long-term, frequent masturbation (jerking off) will lead to a decrease in the body’s immunity, semen will be thinner and look like water, this is due to the relative lack of sperm produced by the testicles and more seminal plasma production. This is because too often causes the testicles to be too late to produce semen, and only prostatic fluid and secretion from the urethral bulbous glands can be ejaculated. In addition, chronic seminal vesiculitis can also cause this condition. This is because chronic seminal vesiculitis can cause a decrease in coagulase secreted by the seminal vesicles, and semen quickly coagulates under the action of coagulase after normal ejaculation, while semen cannot coagulate when coagulase is lacking and looks like water.