Introduction: Modern couples are inclined to postpone conception as a result of societal pressures and expectations during the last several decades. The impact age on spermatogenesis in men is not much studied. While there no known limits at which can father children, implications Advanced Paternal Age (APA) poorly understood. Aim: To assess relationship between advancing aberrant sperm paramet...

Background Recent systematic reviews of the effects of micronutrients on male fertility have identified clear positive effects on basic sperm characteristics. The vast majority of Recent systematic reviews of the effects of micronutrients on male fertility have identified clear positive effects on basic sperm characteristics. The vast majority of studies reviewd found that micronutrients, parti...

background: chromomycin a3 (cma3) staining has been used to assess protamine deficiency. the aim of this study was to determine credibility of cma3 along with semen parameters for assessment of fertility potential. materials and methods: semen analysis and cma3 staining were carried out on 234 fertile and 178 subfertile individuals. semen analysis was assessed according to who criteria. protami...

Artificial insemination (AI) subfertility is an indication of failure of AI with frozen-thawed sperm classified as normal by conventional semen examination. Recently, 8 AI-subfertile Japanese Black cattle (S1-S8) were identified using the routine AI test or in vivo fertilization test, which included AI with frozen-thawed sperm of superovulated females and subsequent non-surgical recovery of pre...

Varicoceles are defined as abnormal dilations of the spermatic vein or the pampiniform plexus and are more common on the left side. Careful physical examination of the contralateral scrotal side is essential as bilateral varicoceles are common. While the diagnosis of varicoceles can be done clinically especially when seminal fluid analysis is impaired, imaging studies with color-flow Doppler re...

Varicoceles are defined as abnormal dilations of the spermatic vein or the pampiniform plexus and are more common on the left side. Careful physical examination of the contralateral scrotal side is essential as bilateral varicoceles are common. While the diagnosis of varicoceles can be done clinically especially when seminal fluid analysis is impaired, imaging studies with color-flow Doppler re...