Print DiagnosisTo diagnose popliteal artery aneurysm, a healthcare professional usually examines you and checks your legs for: Pulses in the back of the knee. Pulses in your feet. Swelling. Tenderness. Changes in skin color or temperature on the lower leg and behind the knee. You may be asked questions about your health history and habits, such as smoking. TestsImaging tests can help tell if you have a popliteal artery aneurysm. Tests may include: Duplex ultrasound. This test uses sound waves to see how blood flows through the arteries and veins. It also lets the healthcare professional measure the size of the popliteal artery. It's a simple and quick way to diagnose popliteal artery aneurysm. For the test, a healthcare professional gently moves a hand-held ultrasound device on the skin behind and around the knee. CT angiography or magnetic resonance (MR) angiography. These tests take detailed images of blood flow in the arteries. Before the images are taken, a solution called contrast is injected into a blood vessel. The contrast helps the arteries show up more clearly on images taken during the test. Care at Mayo Clinic Our caring team of Mayo Clinic experts can help you with your popliteal artery aneurysm-related health concerns. Start Here TreatmentPopliteal artery aneurysm treatment depends on: The size of the aneurysm. The symptoms. Your age and overall health. Treatment may include: Regular health checkups. You get checkups and ultrasound tests to check the aneurysm, particularly if the aneurysm is small. This also may be called "watchful waiting." Medicines. People with popliteal artery aneurysm usually get aspirin. If you have high blood pressure or high cholesterol, your healthcare professional may also give you medicines to treat those conditions. Surgery. Surgery to fix the damaged artery is usually done for any popliteal artery aneurysm that is 0.8 inches (2 centimeters) or larger. But surgery also is typically suggested for any sized popliteal artery aneurysm if you have symptoms. During surgery, a surgeon replaces the artery with a piece of vein or an artificial artery. Rarely, endovascular repair may be done. During this treatment, a doctor places a tube called a stent inside the popliteal artery to keep it open. Request an appointment By Mayo Clinic Staff Popliteal artery aneurysm care at Mayo Clinic Request an appointment Symptoms & causesDoctors & departments Sept. 23, 2026 Print Living with popliteal artery aneurysm? Connect with others like you for support and answers to your questions in the Heart & Blood Health support group on Mayo Clinic Connect, a patient community. Heart & Blood Health Discussions Stopping Carvedilol (Coreg): When will the effects wear off? 419 Replies Sat, Sep 26, 2026 chevron-right High Coronary Calcium Score: How do others feel emotionally? 697 Replies Thu, Sep 17, 2026 chevron-right Living with high calcium score 118 Replies Mon, Sep 28, 2026 chevron-right See more discussions Show references Sidawy AN, et al., eds. Lower extremity aneurysms. In: Rutherford's Vascular Surgery and Endovascular Therapy. 10th ed. Elsevier; 2023. https://www.clinicalkey.com. Accessed Jan. 2, 2026. Cameron JL, et al., eds. Popliteal and femoral artery aneurysm. In: Current Surgical Therapy. 15th ed. Elsevier; 2026. https://www.clinicalkey.com. Accessed Jan. 2, 2026. Braswell-Pickering EA. Allscripts EPSi. Mayo Clinic. June 5, 2023. Peripheral arterial aneurysms. Merck Manual Professional Version. https://www.merckmanuals.com/professional/cardiovascular-disorders/peripheral-arterial-disorders/peripheral-arterial-aneurysms. Accessed Jan. 2, 2026. Reed AB. Popliteal artery aneurysm. https://www.uptodate.com/contents/search. Accessed May 25, 2023. Ask Mayo Expert. Popliteal artery aneurysm. Mayo Clinic; 2025. Aufderheide, TP. Peripheral arteriovascular disease. In: Rosen's Emergency Medicine: Concepts and Clinical Practice. doi:10.1016/B978-0-323-75789-8.00073-6. Lloyd-Jones DM, et al. Life's essential 8: Updating and enhancing the American Heart Association's construct of cardiovascular health: A presidential advisory from the American Heart Association. Circulation. 2022; doi:10.1161/CIR.0000000000001078. Medical review (expert opinion). Mayo Clinic. Feb. 5, 2026. Related Products & Services A Book: Mayo Clinic Family Health Book Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Popliteal artery aneurysmSymptoms&causesDiagnosis&treatmentDoctors&departmentsCare atMayoClinic Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship Policy Opportunities Ad Choices Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press. NEW: Mayo Clinic Guide to Better Sleep Listen to Health Matters Podcast Mayo Clinic on Incontinence The Essential Diabetes Book FREE Mayo Clinic Diet Assessment Mayo Clinic Health Letter - FREE book CON-20248747 Diseases & Conditions Popliteal artery aneurysm