Studies on the coagulational characteristics of human ejaculates

To study coagulation of human ejaculates, fresh semen samples were classified into coagulated (CG), fully-gelified (FG), partly-gelified (PG) and liquid (LQ) groups. The groups were identified physically, morphologically and biochemically. Physically and biochemically, there was no essential difference between the CG and FG ejaculates, but they differed markedly from those of the PG and LQ samples. Coagulation did not occur in ejaculates showing decreased vesicular activities. PG and LQ ejaculates demonstrated significantly higher prostatic activities from those of the CG and FG samples.