Congenital or acquired absence of both testicles.
Atrophy of the testicles.
Complete azoospermia and aspermatism.
Senile impotence.
RELATIVE AND TRANSIENT.
Developmental defects of the penis, and acquired deformities of that organ.
Stricture of the urethra.
Oligozoöspermia.
Nervous impotence.
Gonorrhoeal and syphilitic infection.