Lower extremity vasculopathy, also known as atherosclerosis or lower extremity atherosclerotic occlusive disease, has the following specific symptoms: 1. In mild cases, only unilateral lower extremity hypothermia and loss of dorsalis pedis artery pulsation may occur. In addition, intermittent claudication may also occur. Patients need to pay attention to distinguish it from lumbar disc herniation, which can be identified by touching the presence or absence of dorsalis pedis artery pulsation.2. If the above symptoms are not treated in time, the symptoms will further aggravate. Patients may have resting pain and can only sleep in a sitting position at night, unable to lie down. If the disease is further serious, the patient can have black toes and ulceration, which indicates that the disease is quite serious.