Anterior tetanus is a unique clinical manifestation of tetanus infection. Generally, tetanus bacillus exists in nature, if the human body is infected, the onset of the disease can show tense contraction of the limbs, appear paroxysmal spasms, muscle tonicity without relief, if it affects the back muscles, or abdominal muscles contraction at the same time, because the tension of the back muscles is relatively large, so the performance of the trunk twisted to form an arch, known as coracocephaly. So when the human body is stabbed by the outside world, or stabbed by a nail, the wound is deep and the surface of the wound is small, it may lead to tetanus bacillus in the wound inside a large number of multiplication, so early to the hospital to inject tetanus antitoxin to prevent.