Mijin, K. (6602328701)K. (6602328701)MijinStolevic, E. (6603023403)E. (6603023403)StolevicAdzic, S. (6602891227)S. (6602891227)AdzicLaća, Z. (6602583945)Z. (6602583945)LaćaMarković, S. (24454093000)S. (24454093000)Marković2025-06-122025-06-121982https://doi.org/10.1136/jmg.19.4.305https://www.scopus.com/inward/record.uri?eid=2-s2.0-0019992723&doi=10.1136%2fjmg.19.4.305&partnerID=40&md5=e4c00c65024ecfa0f8bcbb8047443928https://remedy.med.bg.ac.rs/handle/123456789/2136A 35-year-old female patient with oligomenorrhoea had a deletion of the long arm of the X chromosome. The breakpoint at band q23 caused infertility in spite of excessive pituitary stimulation. The aberrant X chromosome was inactivated in all cells analysed. Deletion of the long arm of the X chromosome is one of the most frequent structural aberrations of this chromosome. Fertility and reproduction are affected by these chromosomal anomalies. This paper presents a patient with a deletion of the long arm of the X chromosome and oligomenorrhoea.