A product for use in aiding diagnosis of polycystic ovary syndrome, the product comprising packaging and at least two synthetic oligonucleotide probes and/or primers, wherein at least one of the probes and/or the primers can specifically hybridize to DENND1A Variant 2 mRNA, wherein the product further includes printed material indicating that the product is to be used to detect DENND1A Variant 2 mRNA as an indicator of polycystic ovary syndrome, the product optionally containing one or more sealed containers comprising reagents for use in hybridizing the one or more probes or the primers to the DENND1A Variant 2 mRNA.