[Fertility in men after mumps infection without manifestations of orchitis].

The study presents results of an investigation on male fertility after mumps infection without clinically manifested mumps orchitis. The study included 30 patients, but 10 were excluded because of other ethnologic factors connected to male infertility. Out of 20 patients 12 were fertile, while 8 were subfertile. All of these 8 subfertile patients were with asthenospermia, that is with decreased sperm motility.