Terminologies

• Adrenarche


  development of pubic and axillary hair due to androgen stimulation
• Thelarche


  beginning of breast development.
• Menarche 


  first menstrual period. Average age 12.5 yrs. (ranges 9-17 yrs.)
• Gynecology


  study of female reproductive system.
• Andrology 


  study of the male reproductive system.
• Aspermia


  absence of sperm.
• Oligospermia


  fewer than 20M sperms / cu.mm.
• Varicocele


  varicosity of the internal spermatic vein.
• Vasectomy


  severing of the vas deferens.
• Gynecomastia


  increase in male breasts size.