Wound scar scab color is yellow, this is normal, the wound in the healing process will secrete a small amount of yellowish exudate, sometimes there will be a small amount of serum, these liquids solidified is the yellow scab, this is the normal scab of the wound, is the manifestation of the wound healing well. The wound is not red, swollen, painful, no pus, infection, so do not worry, should continue to wait for the wound scab slowly mature, should be allowed to fall off by itself, do not tear off the scab by yourself, continue to use complex iodine to disinfect the wound covered with sterile gauze. After waiting for the scabs to slowly fall off by themselves, the newly grown normal wound will be revealed.