Unexplained infertility is diagnosed when a couple has not conceived after 12 months of regular intercourse, and standard tests — ovulation assessment, semen analysis, and assessment of the uterus and fallopian tubes (such as HSG or laparoscopy) — are all normal. It affects a meaningful proportion of couples seen at Indian fertility clinics and does not mean nothing is wrong; it means current tests cannot identify a specific cause. Treatment is usually offered in a stepwise manner — lifestyle optimisation, timed intercourse, ovulation induction with or without IUI, and IVF if earlier steps do not succeed, guided by the woman's age and duration of infertility.
Also known as: unexplained subfertility, no cause found, normal reports but not conceiving
Related India guides
Sources
- Indian Council of Medical Research (icmr.gov.in)
- Federation of Obstetric and Gynaecological Societies of India (fogsi.org)
Last reviewed: 9 September 2026. Written by the Antega Editorial Team. General information only — always follow the advice of your own clinic, doctor or pharmacist.