Sports injuries include tendon problems (such as Achilles, patellar and tennis elbow), ligament tears like the ACL, and torn knee cartilage (meniscus). Tendons and ligaments heal slowly because they have a poor blood supply, so researchers are testing whether stem cells can speed or strengthen healing.
AT A GLANCE · SPORTS INJURIES
| Evidence level | Early research |
|---|---|
| Approved stem cell treatment? | No stem cell product is approved by the US FDA or EMA for tendon, ligament or meniscus injuries. |
| Typical private price | $1,150 – $12,000 (indicative) |
| Recruiting trials | 8 listed on ClinicalTrials.gov (4 October 2026) |
| Last reviewed | October 2026 |
Does stem cell therapy work for sports injuries?
Human studies are few, small and mostly low quality. A 2020 systematic review of stem cells for tendon disorders found 8 studies (289 patients), only one of them randomised, all at moderate-to-high risk of bias, and concluded stem cell injections should not yet be used in routine practice. A 2021 meta-analysis of 4 small prospective trials (52 patients, mainly rotator cuff and tennis elbow) reported improvements, but the numbers were very small.
For ACL surgery, a 2022 systematic review found only 4 clinical studies and concluded that adding cells is not supported by evidence. For the meniscus, a 2014 randomised, double-blind trial of donor cells injected after partial meniscectomy reported some pain improvement and possible tissue growth in a minority, but this has not led to an approved treatment. Many claims of faster return to sport come from animal studies or anecdotes.
Is any stem cell treatment approved for sports injuries?
No stem cell product is approved by the US FDA or EMA for tendon, ligament or meniscus injuries. The FDA specifically names tendonitis among conditions with no approved regenerative therapy.
What private clinics offer — and how it compares
Clinics often promote injections of bone marrow, fat or birth-tissue products to ‘heal torn ligaments’, ‘regrow meniscus’ or get athletes back faster, often citing famous sportspeople. The human evidence is limited to small, mostly uncontrolled studies, and none shows that injections can replace ACL reconstruction or proper rehabilitation.
Proven treatments to discuss first
Before paying for an experimental option, make sure you have explored the established treatments for sports injuries with your doctor:
- Relative rest, ice and activity modification in the early phase
- Progressive physiotherapy, including loading exercises for tendon problems
- Bracing or straps (for example, a forearm strap for tennis elbow)
- Pain relief medicines for short periods
- Shockwave therapy for some chronic tendon problems
- Surgery such as ACL reconstruction or meniscus repair when needed
How much does stem cell therapy for sports injuries cost?
Private clinics typically quote $1,150 to $12,000. A US survey of knee stem cell injections found about $1,150–$12,000 (average $5,156), and a 2021 UC Irvine study found an average of about $5,100 per treatment, with sports injuries advertised by over a fifth of US stem cell businesses. Insurance usually does not cover them. Compare prices by country in our cost guide and location guides, and check insurance coverage.
Risks and side effects
- Pain and swelling after injection, which can interrupt training
- Infection at the injection or harvest site
- Returning to sport too early because of false confidence, risking re-injury
- Possible anti-doping rule issues for competitive athletes — check with your sport’s governing body first
- Unregulated products of unknown quality, and high cost without proven benefit
Recruiting clinical trials for sports injuries
On 4 October 2026, ClinicalTrials.gov listed 8 recruiting or soon-to-recruit stem cell studies for this condition, 2 with sites in the United States. Here are up to eight, latest-stage first:
See all matching studies on ClinicalTrials.gov. A listing is not an endorsement: registration does not mean a study is safe or effective, and genuine trials rarely charge you for the experimental treatment. Ask the study team about costs, placebo groups and follow-up before you enrol. See our clinical trials hub.
Questions to ask before you agree to treatment
- Is my injury one that usually heals with physiotherapy alone, and how long should I try that first?
- For a ligament or meniscus tear, what does an orthopaedic surgeon recommend?
- What trials support this injection for my specific injury?
- Could this product affect anti-doping rules for my sport?
Before You Pay: The Stem Cell Clinic Checklist
- 20 questions every legitimate clinic should answer in writing
- A red-flag scorecard to spot unregulated marketing
- Realistic 2026 cost ranges: US, Mexico, Panama & Europe
- How to find a registered clinical trial
Red flags to watch for
- Claims that injections can heal a completely torn ACL without surgery
- Celebrity athlete endorsements used in place of published trial results
- Advice to skip structured rehabilitation because the cells will ‘do the work’
Stem cell therapy for sports injuries: FAQs
Does stem cell therapy work for sports injuries?
Evidence is limited to small, mostly low-quality studies. Some show improvement in tendon pain, but there is no strong proof that stem cells heal injuries faster than good rehabilitation. It remains experimental.
Can stem cells heal a torn ACL without surgery?
No good evidence shows this. A 2022 review concluded that adding cells to ACL surgery is not currently supported, and a fully torn ACL does not regrow from an injection.
Do stem cells work for tennis elbow?
Only a handful of small studies have tested this, with encouraging but unreliable results. Most tennis elbow improves over time with exercise, strapping and activity changes.
How much does stem cell therapy for a sports injury cost?
US clinic prices for orthopaedic stem cell injections typically range from about $1,150 to $12,000, averaging around $5,000, usually paid out of pocket.
Is stem cell therapy FDA approved for tendon or ligament injuries?
No. The FDA has not approved any stem cell product for tendon, ligament or meniscus injuries and warns patients to be cautious about clinics offering them.
Related guides
- Stem cell therapy for knee arthritis
- Stem cell therapy for back pain
- Stem cell therapy for rotator cuff tears
- Stem cell therapy for hip arthritis
- All conditions · Types of stem cell treatment · Clinical trials hub
Sources
- Efficacy of Stem Cell Therapy for Tendon Disorders: A Systematic Review (Orthop J Sports Med, 2020)
- Mesenchymal Stem Cells Use in the Treatment of Tendon Disorders: Systematic Review and Meta-Analysis (Annals of Rehabilitation Medicine, 2021)
- Cellular Augmentation of ACL Surgery Is Not Currently Evidence Based: A Systematic Review of Clinical Studies (Arthroscopy, 2022)
- Adult human MSCs delivered via intra-articular injection after partial medial meniscectomy: randomized, double-blind, controlled study (2014)
- FDA – Important Patient and Consumer Information About Regenerative Medicine Therapies
- AAOS OrthoInfo – Orthobiologics (Regenerative Medicine) FAQ
- UC Irvine (2021) – Businesses selling non-FDA-approved stem cell products grew four-fold in five years
Last reviewed October 2026. For general information only — not medical advice. We do not endorse any clinic or product. Always consult a qualified, licensed healthcare professional. See our medical disclaimer and editorial policy.