Loss of the dorsalis pedis artery is commonly seen in patients with severe narrowing or occlusive lesions of the lower extremity arteries, such as diabetic foot, lower extremity atherosclerotic occlusive disease, thrombo-occlusive vasculitis, lower extremity arterial embolism or arterial injury, and is often associated with smoking, hypertension, diabetes, hyperlipidemia, and other diseases. Patients present with coldness, numbness and intermittent claudication in the affected limbs. Intermittent claudication refers to discomfort such as soreness or pain in the affected limb after walking a certain distance, which can be relieved by resting for a period of time, and then the symptoms appear again after walking a certain distance, even painful without walking, ulceration and blackening. First of all, consider the possibility of severe narrowing or occlusive lesions in the arteries of the lower extremities. At this time, go to the hospital as soon as possible to find a doctor experienced in vascular surgery or vascular diseases to evaluate and make a clear diagnosis so as to be able to receive timely standardized and effective diagnosis and treatment.