Testicular torsion is treated with emergency surgery to untwist the spermatic cord and restore blood flow to the testicle. The chance of saving the testicle drops sharply with every passing hour: 97% within the first six hours, 79% between seven and twelve hours, and just 54% between thirteen and twenty-four hours. This is one of the few urological conditions where minutes genuinely matter.
Why Time Is Critical
When the spermatic cord twists, it cuts off the blood supply to the testicle. After roughly four hours of lost blood flow, the tissue begins to suffer permanent damage, leading to hemorrhagic infarction and cell death. A systematic review of over 1,200 patients found that testicular salvage rates follow a steep decline: 90.4% if treated within the first 12 hours, 54% between 13 and 24 hours, and only 18.1% beyond 24 hours. Past 48 hours, the salvage rate drops to 7.4%.
This is why most emergency departments treat a suspected torsion as a surgical emergency rather than waiting for imaging to confirm it.
How Torsion Is Diagnosed
Diagnosis is primarily clinical. A sudden onset of severe, one-sided scrotal pain, often with nausea or vomiting, in a teenager or young adult is treated as torsion until proven otherwise. On exam, the affected testicle often sits higher than normal and may have a horizontal lie instead of the usual vertical orientation.
Color Doppler ultrasound can show reduced or absent blood flow to the testicle, but it is not reliable enough to rule torsion out on its own. One study found that ultrasound performed by on-duty doctors had a sensitivity of about 70%, meaning it missed roughly 3 in 10 confirmed cases. Because of this, surgeons will often proceed directly to the operating room based on the physical exam and the patient’s history, especially when symptoms began recently. Waiting for imaging when clinical suspicion is high wastes precious time.
Manual Detorsion in the ER
Before surgery, an emergency physician may attempt to manually untwist the testicle to restore some blood flow immediately. About 95% of torsions twist inward (toward the midline), so the standard technique is to rotate the testicle outward, often described as “opening a book.” For the left testicle, this means rotating clockwise; for the right, counterclockwise.
The cord can twist anywhere from 180 to 720 degrees, so the maneuver may need to be repeated several times. Success rates reported in the literature range from 76% to 95% when performed by urologists, though results vary more widely in general ER settings. Even when manual detorsion works and pain improves, surgery is still required afterward to permanently fix the testicle in place and prevent recurrence.
What Happens During Surgery
The definitive treatment is a procedure called surgical detorsion and orchiopexy. Under general anesthesia, the surgeon makes an incision in the scrotum or groin, untwists the spermatic cord, and assesses whether the testicle is viable. If blood flow returns and the tissue appears healthy, the testicle is stitched to the inner wall of the scrotum using either absorbable or permanent sutures placed into the tough outer covering of the testicle and the surrounding tissue. This anchoring prevents the testicle from twisting again.
Critically, surgeons fix both testicles during the same operation, not just the affected one. The anatomical features that allow torsion, such as excessive mobility of the testicle within the scrotum, are almost always present on both sides. Bilateral orchiopexy eliminates the risk of future torsion on the opposite side. Studies show this approach prevents testicular loss in 100% of cases with follow-up.
When the Testicle Cannot Be Saved
If the testicle has been without blood flow for too long and the tissue is clearly dead (dark, non-bleeding, unresponsive to warming), the surgeon will remove it entirely. This procedure is called an orchiectomy. The decision is made in the operating room based on whether the tissue shows any signs of recovery once untwisted. Even when removal is necessary, the opposite testicle is still fixed in place during the same surgery.
Recovery After Surgery
Most people feel groggy for a day or two from the anesthesia. The groin and scrotum are typically uncomfortable for 7 to 10 days. Dissolvable stitches are standard and disappear on their own within about three weeks.
You can shower 48 hours after surgery, but avoid soaking in a bath or swimming for 10 to 14 days. Wearing a scrotal support, snug briefs, or cycling shorts for the first week helps reduce swelling and bruising. Most people return to work or school within a week, though physical jobs may require longer.
The main restrictions are straightforward:
- Vigorous exercise and sports: avoid for 4 to 6 weeks
- Sexual activity: typically comfortable again after about 2 weeks
- Driving: wait until you can comfortably perform an emergency stop, usually within the first week
Long-Term Fertility Outlook
One of the biggest concerns after torsion is whether it affects the ability to have children. The reassuring answer is that unilateral torsion, even when the testicle is removed, does not dramatically reduce fertility for most people. A study tracking pregnancy outcomes found that 84% of couples achieved a live birth after the man had lost a testicle to torsion, a rate very close to the 85% general fertility rate in healthy couples. The median time to pregnancy was about 1.6 years.
When the testicle was saved through orchiopexy, outcomes were even better: 91% of couples achieved a successful pregnancy. Preserving the injured testicle, when possible, consistently yielded shorter times to pregnancy and higher success rates compared to removal. This is one reason surgeons make every effort to save viable tissue rather than default to removal.
Age at the time of torsion also matters. Torsion in childhood had the least impact on future fertility, while torsion in adulthood was associated with the lowest pregnancy rates. Some studies have noted lower sperm counts and reduced sperm motility as long-term effects of torsion regardless of whether the testicle was saved or removed, but these changes did not translate into meaningful differences in the ability to conceive for most men.