DPY19L2 and Infertility: Herein, a 180-kbp homozygote deletion at 12q14.2 (g.63950001-64130000) was identified by copy number variation sequencing (CNVseq) in a patient with a globozoospermia, including the complete deletion of <i>DPY19L2</i>.<h4>Case presentation</h4>A 27-year-old patient at the First Affiliated Hospital of Xiamen University was diagnosed with infertility because, despite normal sexual activity for 4 years, his wife did not conceive.