Infertility is defined as not being able to get pregnant for at least a year despite having frequent, unprotected sex. For women who are 35 and older, it’s sometimes defined as 6 months without conceiving successfully. There are many reasons for infertility. For female infertility, PCOS is the most common cause.
- Centers for Disease Control and Prevention (CDC). Infertility FAQs. https://www.cdc.gov/reproductivehealth/infertility/index.htm (accessed 5. August 2020)
- Mayo Clinic. Female infertility. https://www.mayoclinic.org/diseases-conditions/female-infertility/symptoms-causes/syc-20354308 (accessed 5. August 2020)
- NHS UK. Infertility. https://www.nhs.uk/conditions/infertility/ (accessed 5. August 2020)