10~15% of diabetic patients suffer from complications in foot. This is the problem of blood vessel and the problem of nerve. If there is a wound in diabetic foot, it can be divided into DM foot ulcer and DM foot Infection. In case of ulcer, it is followed by low grade infection, but the infection itself is not a big problem. But if it progresses to infection, it may endanger life if the infection cannot be controlled within a short time. In DM foot Infection, when a diabetes-derived infected patient comes, look at the patient’s body condition, conduct lab. test to check the patient’s condition as it may be used as indicator for proceeding with treatment and observate shape of inflammation. For proper drainage abscess, we should know foot compartment, and drainage should be carried out throught and throught. If there is pus, try dry dressing. Bacterium should be treated by thinking it as multi infection. The type of diabetic foot infection, it largely starts in web space by direct penetration due to hypoesthesia and abscess in central plantar compartment along the flexor tendon is most common, which causes a big problem. If there is abscess in the central compartment, it may affect the blood flow coming to toe, which is likely to cause necrosis. You must be careful. If your blood flow is good, you will be well-treated. So you should know your blood flow. If there is a protruding bone attributable to transformation, you should receive a CT scan to determine the relationship between ulcer and protrusion. And if necessary, you should remove the protruding portion. As approach for this, it may be possible to enter through inflammation and remove ulcer and protruding bones. But if there is inflammation, you may fail. If you have inflammation, you should approach from the opposite direction of an ulcer.