Anticoagulant therapy is a vital method of treatment and prophylaxis of thromboembolic diseases which clinically have a wide spectrum. Sometimes the most important complication of anticoagulant therapy is bleeding that may threaten life. Therefore, it is vital that anticoagulant therapy be planned so that it does not lead to thrombosis or bleeding and clinical and laboratory follow-up should be performed carefully. Skin bleeding caused by oral anticoagulants rarely occurs. It is advised that the reversal of anticoagulation should be done with the treatment of vitamin K, prothrombin complex concentrate (PCC) and fresh frozen plasma (FFP) as soon as possible. In this article, a case, who developed skin bleeding caused by receiving warfarin as prophylaxis because of atrial fibrillation and aortic valve replacement (AVR), was presented.