Ruling 345. If some fluid comes out of the penis and the man does not know whether it is semen, urine, or something else – in the event that it comes out with three characteristics: it is accompanied by lust, it comes out with a gush, and one’s body feels weak after it has come out – then that fluid is ruled as being semen; and if none of these three characteristics are present or if even one of them is not, it is not ruled as being semen. However, in the case of a sick person, it is not necessary that the fluid comes out with a gush or that at the time of coming out his body feels weak; rather, if the only characteristic present is that it comes out with lust, it is ruled as being semen.