Effect of Two Doses of Coenzyme Q10 on Seminal Fluid and Semen Antioxidant Status

Inclusion Criteria: * History of infertility of at least 12 months despite regular unprotected intercourse. Oligoasthenoteratospermia was diagnosed by semen analysis showing abnormal sperm concentration (\<15 million/ml), progressive motility (\<32%), total motility (\<40%) and morphology (\<30% WHO criteria) as defined by WHO manual for semen analysis 2010 Exclusion Criteria: * Azoospermia, * Varicocele, * Genital tract infection, * Cryptorchidism, * Testicular trauma or scrotal surgery, * Endocrine disorder, * Systemic illness, * Smoking * The presence of female factor