The vast majority of wounds with scabs that are white in color are relatively normal. Because the wound in the relatively dry situation, the scab can show part of the white color, especially in the case of partial shedding of the scab. In fact, it is more important to look at the scabbed wound, there is no redness, swelling, ulceration, oozing and pus, especially to observe the local skin has no redness and skin temperature has not risen. The patient should go to the emergency surgery of the hospital regularly for dressing change, and the localization should be well protected, and must not be touched by water or wet. It may take 1-2 weeks for these scabs to fall off, some may take longer, and it is not recommended to force them to fall off early.