ATP7B and Wilson disease: Wilson’s disease is an autosomal recessive disorder caused by ATP7B gene mutations, leading to copper metabolism dysfunction. D-penicillamine is an effective treatment for Wilson’s disease; however, it has been associated with hematologic complications, including thrombocytopenia, hemolytic anemia, and thrombotic thrombocytopenic purpura [2]. Here, we present a case of disseminated intravascular coagulation as a complication of D-penicillamine use in Wilson’s disease.