There are no sequelae of tetanus if it is treated actively. If it is not treated in time, it can cause irreversible damage such as over-contraction of muscles, muscle rupture, and toxins entering the brain. If tetanus is not actively treated, it will lead to irreversible complications, tetanus bacillus infection will cause generalized increase in muscle tone, sometimes there may be muscle spasms, if the laryngeal muscles continue to spasm, it will lead to airway compression, asphyxia, prolonged oxygen deprivation will lead to cerebral edema of the brain, toxins into the brain will be irreversible damage, permanent impaired consciousness, severe cases will have hemiparesis, loss of speech. In severe cases, hemiplegia and loss of speech can occur. The appearance of rusty sharp object injury, need to be timely inoculation of tetanus vaccine to prevent tetanus, the appearance of tetanus systemic symptoms need to be timely hospital consultation, active treatment, so as not to delay the condition.