As the saying goes, a journey of a thousand miles begins with a single step. Diabetic patients of the long road of sugar control, walking boring and helpless, but when you see around the “sugar friends” because of poor blood sugar control, complication of cerebral infarction, myocardial infarction, peripheral neuropathy, fundus lesions, etc., you are not heart steal joy? Do you know what diabetic foot is? Diabetic patients suffer from insufficient blood supply to the lower limbs due to vascular disease, loss of sensation or loss of sensation due to peripheral neuropathy, and on the basis of trauma and infection, which leads to ulceration or even necrosis of the foot skin, which is called diabetic foot. Due to the long-term high blood glucose leads to the high viscosity and high coagulation state of blood as well as the characteristics of the circulation of the lower limbs and many other factors make the arteries of the lower limbs of diabetic patients prone to vasculopathy, thickening of the wall, narrowing of the lumen, the gradual reduction of blood supply to the lower limbs, the emergence of pain in the lower limbs and intermittent claudication, and in severe cases, it can lead to gangrene of the lower limbs; and the diabetic neuropathy leads to the endings of the extremities of protective sensation weakened or lost and foot Diabetic neuropathy will lead to the weakening or loss of protective sensation at the endings of the limbs and changes in the biomechanics of the feet, so that the body lacks protective measures for the feet, which is very easy to cause mechanical or temperature damage, and once the damage is done, the pathophysiological changes mentioned above will make it not easy to be repaired, and chronic ulcers will be formed, which often require amputation. Second, diabetic foot condition has light and serious, the performance is different, summarized as follows: 1, elevate the lower limb when the foot skin pale, lower limb sagging was purplish-red; 2, foot cold, dorsalis pedis arterial pulsation weakened or even disappeared. 3, intermittent claudication: is sometimes walking suddenly feel unbearable pain in the lower limbs, so that you have to walk with a limp. 4.Lower limb rest pain: not only the lower limb blood supply is insufficient when walking, but also the lower limb pain due to ischemia when resting, and it can be difficult to sleep at night when it is serious. 5, foot gangrene: the condition further develops, the lower limbs, especially the feet can appear gangrene, the wound does not heal for a long time, and the serious ones have to amputate the limbs. The above is the common manifestation of diabetic foot, are you hit? Third, how to early detection of diabetic foot? Diabetic foot is a common complication of diabetes. The onset of the early stage can not have any subjective symptoms. But you can make a rough assessment by yourself: 1, whether there is deformity change, lesser ectropion and claw toe, etc.. 2. Abnormalities of vegetative function: dry skin, loss of sweat hair, dilated dorsalis pedis veins. 3, callus formation: callus formation in the insensitive weight-bearing parts of the foot is an important risk factor for diabetic foot. 4.Peripheral vascular lesions: ischemic skin color changes, cracks, fissures and changes before gangrene. 5.Ulcer formation: focus on checking the surface between the toes and the foot. 6.To know the skin temperature of the foot by using the back of the hand (it is better to let the family members to do it), and to palpate the pulsation of the dorsal foot artery and the posterior tibial artery. If any abnormality is found, you should go to the hospital for examination in time to avoid delaying your condition.