Objective        To discuss diagnosis and therapies of traumatic aneurysm and prevention of the complications.       Methods        Data of 17 patients diagnosed as traumatic aneurysm were retrospectively analyzed. Fifteen patients had craniocerebral trauma history while the other two had history of craniocerebral surgery. All the patients were given digital subtraction angiography (DSA). Six patients received craniotomy while the others received endovascular therapies. The efficacy of the treatments was observed and postoperative follow-up were performed using the Glasgow outcome scale (GOS).        Results        All of the 17 patients had successful treatments. Twelve patients were followed up from 3 months to 12 years while the other 5 cases were lost by some reasons. The final clinical outcome evaluated by GOS value was 5 in 8 cases

4 in 2 cases

and 2 in 1 case.       Conclusion        Traumatic aneurysm is a rare complication of craniocerebral trauma or craniocerebral surgery. The ruptured traumatic aneurysm results in high mortality. Improving the awareness of traumatic aneurysm

especially the iatrogenic aneurysm

early diagnosis and choosing proper treatment help achieve relatively good therapeutic effects.