Why Does IUI Fail? | Common Reasons Behind Unsuccessful IUI Cycles Intrauterine Insemination (IUI) is often one of the first steps in fertility treatment. While it’s a simpler and less invasive method compared to IVF, IUI doesn't always lead to pregnancy. Understanding the reasons behind IUI failure can help couples make informed decisions for future treatments. 🔍 Here are some common reasons for IUI failure: Poor Egg Quality or Quantity: If the ovaries do not produce healthy or enough eggs, fertilization becomes difficult. Sperm Problems: Low sperm count, poor motility, or abnormal shape can reduce the chances of fertilizing the egg. Timing Issues: If insemination isn’t done at the right time of ovulation, the chances of success drop significantly. Endometrial Issues: A thin or unreceptive uterine lining can prevent implantation even if fertilization occurs. Unexplained Infertility or Other Hidden Factors: Sometimes, no clear cause is found, or factors like immune issues, infection, or undiagnosed endometriosis may be involved. If you’ve had multiple failed IUI cycles, don’t lose hope. A fertility expert can help explore further options like IVF or advanced investigations. 👨‍⚕️ Consultation with fertility specialist Dr. Pritam Sulakhe can help guide your journey.