• Anejaculation: refers to the absence of ejaculation.
• Asthenozoospermia: low sperm motility.
• Azoospermia: lack of sperm in semen.
• Diabetes mellitus: can lead to testicular damage, reduced sperm count and insufficient sperm quality.
• Teratozoospermia: alterations in the shape or structure of spermatozoa.
• Erectile dysfunction: inability to achieve and maintain an erection.
• Seminal infections: caused by harmful micro-organisms in the prostate, vesicles, vas deferens, epididymis or testicles.
• Varicocele: dilation of the veins that send blood out of the testicles.
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Vasectomy: surgery in which the ducts of the scrotum are blocked or cut.
