Infertility in Ayurveda has been described as Vandhyatwa – failure to achieve conception by a couple of mature age, having normal coitus, during an appropriate period of ritu-chakra (menstrual cycle), regularly for over a year.
The causes of the above have been stated by Charakacarya as due to defects of the bijamsha (spermatozoa and ova). Elaborating further, he mentions regarding clarity and normalcy of ‘manas and hridaya’ (the mental state), properly functioning vayu (nervous system), acceptance of shukra (semen) by the yoni (vagina), in other words, deposition of semen high in the vagina, proper aahara (food and digestion), vihaara (good conduct and lifestyle of the couple), vichaara (thought process, mental stability) and bala (strength and health) are factors essential for procreating.