Objective To improve early diagnosis of testicular torsion,reduce misdiagnosis and reduce the rate of orchiectomy.Methods The diagnosis and treatment of testicular torsion in 31 cases were retrospectively ana-lyzed.Results 54.8% misdiagnosis rate was in this group,all the 31 cases were diagnosed by color Doppler ultra-sound,including 19 cases of retained testicle and orchiectomy in 12 cases (38.7%).In 19 cases of this group retained testis,testicular torsion time within 5 hours was 2 cases,and postoperative had testicles survival.In the 6 cases of testicular torsion time within 5 hours to 10 hours,5 cases had the testis survival.In the 5 cases of torsion of testis time was 10 hours to 24 hours,3 caseshad the testis survival.In the 6 cases of testicular torsion time more than 24 hours,2 cases of testis survival.After postoperative following-up,19 cases of retained testis had no recurrence,all the 31 cases were found no contralateral testicular torsion and all cases sex hormone levels were in the normal levels. Conclusion Testicular torsion is easily misdiagnosed,color doppler ultrasound should be preferred.Early diagnosis and aggressive surgical exploration,unity and strictly control the orchiectomy surgery indications,means a lot to reduce the rate of orchiectomy.