1. Introduction: The 30% Mystery
Receiving a diagnosis of "unexplained infertility" can be a deeply frustrating experience for couples. After undergoing a standard fertility evaluation, up to 30% of couples find themselves in this category. By definition, an "unexplained" diagnosis means that medical testing has confirmed three key things: at least one patent (open) fallopian tube, documented regular ovulation in the female partner, and a semen analysis showing an adequate number of motile sperm in the male partner.
When no specific cause can be identified, treatment is by necessity "empiric"—meaning it is based on clinical observation and proven success rather than a targeted fix for a specific defect. While the diagnosis may feel like a mystery, the treatment path is not. The American Society for Reproductive Medicine (ASRM) has developed clear, evidence-based guidelines to help couples navigate this journey toward a healthy live birth.
2. The "Unexplained" Toolkit: What the Science Says
The primary goal of fertility treatment for unexplained cases is to increase —the probability of achieving a pregnancy in a single menstrual cycle. We achieve this through combined with . This approach simultaneously increases the number of mature eggs available for fertilization and places a higher concentration of motile sperm directly into the uterus at the optimal time.