Arterial pseudoaneurysm is a rare complication caused by damage to the arterial wall, resulting in a locally 832 confined hematoma connected to the lumen of the artery.We report the case of a patient on anticoagulants who developed nodules at the surgical wound site after Mohs micrographic surgery for basal cell carcinoma.The initial clinical suspicion was the formation of a simple hematoma.However, Doppler ultrasound examination revealed the presence of pseudoaneurysms in the bilateral supratrochlear arteries.We believe PS4 this is the first reported case of supratrochlear artery pseudoaneurysm following dermatologic surgery.