Carpal coalitions are congenital conditions that can cause ambiguous wrist pain and should be considered as a rare possibility in the differential diagnosis, especially in screening settings such as military hospitals. This case report presents the first domestic report of bilateral lunotriquetral coalitions in a 21-year-old military cook who presented with bilateral wrist pain. A radiographic evaluation confirmed a Minnaar type 3 complete osseous coalition. After conservative treatment, the symptoms improved. This case was rare in the Korean context, and the report provides various radiological images along with a review of previously reported cases in the Korean literature.