The short answer
Little League elbow is an overuse injury of the inner elbow in growing throwing athletes, where repetitive throwing stresses the growth plate and the ulnar collateral ligament (UCL), causing inner-elbow pain and reduced throwing velocity. The mainstay of treatment is rest from throwing, mechanics and workload correction, and physical therapy, with careful return-to-throw progression; PRP is considered for select UCL injuries.
Medically reviewed by Marc Gruner, DO, MBA, RMSK
Sports medicine physician, Mayo Clinic fellowship. Last reviewed June 2026
Overview
In young throwers, the growth plate and ligaments of the inner elbow are still developing and vulnerable to repetitive throwing loads. Little League elbow describes the resulting overload — irritation of the medial growth plate and stress on the UCL — which shows up as inner-elbow pain, decreased throwing distance or velocity, and sometimes reduced range of motion.
Protecting a growing athlete is the priority. Dr. Gruner emphasizes rest from throwing, correcting pitch counts and mechanics, and a structured physical therapy and return-to-throwing program. Ultrasound helps assess the growth plate and UCL, and PRP may be considered for select ligament injuries under close guidance.
Common symptoms
- Pain on the inner side of the elbow
- Decreased throwing velocity or distance
- Reduced elbow range of motion
- Pain that returns with throwing
What to expect at your visit
- 1.
A focused conversation
Dr. Gruner reviews your history, prior imaging, and goals — what you want to get back to doing.
- 2.
Point-of-care ultrasound
When useful, a diagnostic musculoskeletal ultrasound evaluates the injury in real time, with no radiation.
- 3.
A clear, individualized plan
You leave understanding the diagnosis, the non-surgical options, and the expected timeline — in plain language.
Frequently asked questions
- How is Little League elbow treated?
- The foundation is rest from throwing, correcting workload and mechanics, and a physical therapy and return-to-throw program. Because the athlete is still growing, careful management prevents lasting damage. PRP may be considered for select UCL injuries after evaluation.