Hello,
In infertility, there are host of other causes like age, taking up alcohol or certain drugs that causes infertility, food, coffee, and many
causes beyond these. Infertility starts
to kick in slowly from age 30 and more rapidly from age 35 onwards in women.
Moreover, medical causes may be due to problems in ovulation,tubes,uterus,cervix,endometriosis,pituitary,hypothalamus or secondary male infertility. Also, the quality of egg and sperms decrease with advancing age .