Adult testicles are 2-3 inches long and 1 inch wide. Testicles should feel firm and smooth like eggs. Asymmetrical testicles are common and usually not problematic. Testicles may differ in size during fetal development. Testicles tend to decrease in size with age
Testes are two egg-shaped organs located in scrotum. Each testicle surrounded by three membranes and suspended by spermatic cord. Adult testes measure 2-3 cm wide and 3-5 cm long
Sperm are male reproductive cells containing 23 chromosomes. Sperm head carries genetic information, middle contains mitochondria. Tail propels sperm through female reproductive system. Semen carries sperm from testicles to fallopian tubes
Testosterone is the main male sex hormone responsible for puberty development. Low testosterone can delay puberty and cause self-consciousness. Herbal supplements claiming to boost testosterone are generally ineffective
Healthy semen appears off-white or slightly yellow. It has a gel-like consistency similar to raw egg whites. Semen typically smells like ammonia or bleach. Normal semen volume ranges from 1.5 to 5 milliliters per ejaculation
Testicles are male gonads located in scrotum, extending from abdominal wall. Average adult testicle measures 5x2x3 cm, with normal volume 15-25 cm³. Testicles are covered by tunica albuginea and contain seminiferous tubules. Testicular temperature must be slightly below body temperature for optimal sperm production