RESUMEN
Seminovesiculitis syndrome is one of the common difficulties of the seminal vesicle glands encountered in all ages and is caused by microbial, viral, protozoal and clamidial agents in primary and secondary form. Obstructions and stenosis of the ejaculatory duct, prostatic hyper-plasia, cystitis, prostitis and progress of infection through the prputial sheath. Sperm of Such animals have difficulties from the point of view of mobility, freezing ability, quality and fertility. Rate of seminovesiculitis in bulls in this study was 2.1 percent and microscopical disorders were as follows: seminovesiculitis with and without pus production senile atrophy, hyperplasia of the covering epithelium, congenital hyper- plasia, cystic hyper-plasia of right vesicular gland edema and hemorrhage