Previous studies variably reported that hydrocephalus post TBI occurred in approximately 0.7% to 45% of affected individuals.[7,8] In our analysis, we found that a new event of PTH affected 1.95% in the TBI-S group and 0.48% in the TBI-NS group during the 0 to 3rd month. The gene discussed is PTH; the disease is Hydrocephalus.