{Reference Type}: Case Reports {Title}: Dohsa-hou for unexplained regression in Down syndrome in a 19-year-old man: A case report. {Author}: Fujino H;Moritsugu A; {Journal}: Clin Case Rep {Volume}: 10 {Issue}: 5 {Year}: May 2022 暂无{DOI}: 10.1002/ccr3.5827 {Abstract}: Unexplained regression in Down syndrome (URDS) has become a significant issue in clinical practice and research. This report illustrates the case of a patient with URDS treated with psychological treatment using Dohsa-hou, in addition to medication. Although psychological treatment may be helpful, monitoring potential risks of acute aggression is necessary.