Infertility is not conceiving after 12 months of regular sexual intercourse without birth control.

In men, potential causes of infertility include low sperm count, poor sperm motility, abnormal sperm shape, hormonal imbalances, and issues with the reproductive organs. In women, causes can include irregular ovulation, blocked fallopian tubes, endometriosis, polycystic ovary syndrome (PCOS), uterine abnormalities, and age-related factors.

It's important to consult a healthcare professional for proper diagnosis and guidance.