How common is testicle torsion and how common is removal of testicle if treatment doesn't work?

By UPTODATE: 1 in 4000 in males younger than 25 years old. Approximately 65 percent of cases occur in boys between the ages of 12 and 18 years. By PUBMED: about 1/3 will need orchiectomy. Among those undergoing surgical intervention, orchiectomy was performed in 33.6%. The risk of orchiectomy was highest in patients 1-11 years of age (46%) and patients over 50 years of age (69.7%).

The incidence is about ! in 4000. Most occur between the ages f12-20yrs and the the incidence decreases.. If the torsion is corrected within about 3hrs the testicle dies and has to be removed. A sudden severe pain in the testicle of a young adult is an emergenc to be seen and treated rightaway.