Warfarin is a commonly used anticoagulant agent that can have life-threatening complications, such as severe bleeding, which then require cessation of the treatment. Due to the widespread use of this therapy in recent years, incidences of its hemorrhagic complications have also increased significantly. In hemodynamically stable patients, it is possible to adopt conservative treatment strategies, such as ultrasound (US) therapy as an alternative. US is a physical therapy modality widely used in musculoskeletal disorders, but there is little evidence about its effectiveness for hemorrhagic complications because of the limited number of studies on this subject at present. A 77-year-old male who had been under oral anticoagulant therapy for 6½ years presented at the clinic with complaints of severe pain and numbness in the anterolateral thigh. US evaluation revealed iliopsoas hematoma. US treatment, administered as a physical therapy modality, resulted in faster resorption of the hematoma than expected. The patient fully recovered from clinically observed pain, meralgia paresthetica, and reduced patellar reflex.