Infertility in females is defined as the inability to achieve pregnancy after 12 months of unprotected sexual intercourse, affecting an estimated 48 million women globally, with significant prevalence in specific regions. Contributing factors include age, lifestyle choices, and medical conditions, while diagnostics involve a combination of medical history, hormone tests, and imaging techniques. Preventive measures and treatments focus on maintaining a healthy lifestyle, addressing existing health issues, and exploring options like egg freezing.