A deep bloody gash touched on a baby’s forehead usually heals after two weeks. Baby forehead touched a very deep a bloody wound, if the wound is deep and large, is required to the surgery for debridement, at the same time inoculation tetanus vaccine, and then suture. After suturing, the wound is well aligned and there is no secondary infection, the stitches can usually be removed in five to seven days. After the sutures are removed, the tissues go through a long repair period to form scar tissue so that the head trauma is basically healed, and the whole process takes about two weeks. The baby’s forehead knocked a deep bloody wound, but also need to rule out other complications, such as subdural hemorrhage, intracranial hemorrhage and so on. It is recommended to seek timely medical treatment, active treatment, and improve other tests if necessary.