Little League elbow is a common overuse injury associated with throwing. This injury is most common in pitchers but also occurs in catchers, infielders, and outfielders.

Little League elbow results from repetitive stress to the growth plate on the inside of the elbow. Growth plates are the tissue at the end of a child’s bones that are very actively growing. These areas can be easily injured since a growth plate is much weaker than the ligaments and muscle attached to it. Once growth plates fuse (close), athletes are more likely to injure ligaments and tendons instead.

Pitching and throwing are unique arm motions and place a lot of stress on the elbow. The greatest stress occurs during the acceleration phase of throwing a baseball.

Little League elbow is most common between ages 8 to 15 years but can occur up to age 17 years if the growth plate has not fused. This condition is seen most often in pitchers. Athletes who play other high-volume throwing positions, like catcher, shortstop, or outfielder, are also susceptible.

There is a direct link between elbow pain and the number of pitches (pitch counts) and number of games in which a young player throws. Most leagues have rules in place about this, but they may not be followed, so it is very important that someone (usually the parent) keeps count. This includes counting the extra throwing done outside of practice. This problem is seen much more commonly in baseball players who play year-round and pitch for more than one team.

Fastballs are the most common pitches thrown in baseball and are thrown hard, usually with backspin. Changeups are thrown with the same arm action as a fastball, but the ball moves slower because the pitcher holds the ball with a different grip. Breaking pitches (curveballs/sliders) are thrown with topspin that causes them to “break” or drop down as they reach the plate. Breaking pitches appear to cause the most stress to the shoulder and elbow, so they are not recommended until age 14 for a curveball and age 16 for a slider.

Little League elbow usually begins gradually without a specific injury, but a distinct painful pop may occasionally be felt. Young athletes often try to minimize their symptoms so they can continue playing their sport.

Athletes may experience aching, sharp pain, and swelling on the inside of the elbow. These symptoms may occur only with pitching but may progress to the point that any throwing causes pain. Advanced stages of the disorder may include small fractures of the growth plate, loose bodies or bone chips, or early arthritis and bone spurs.

X-rays of the elbow can help determine if the growth plate is still open and if it is widened. They can also show other bone problems, loose bone chips, and early arthritis. X-rays of patients with Little League elbow may show nothing abnormal, but the athlete may still have pain.

Treatment of Little League elbow involves 3 stages: rest, rehab, and return to pitching.

  • Rest. At first, complete rest from all throwing activities is important. Ice can be helpful to relieve pain and swelling. Nonsteroidal anti-inflammatory drugs can be used but are not usually needed if the athlete is not throwing.

  • Rehab. Individualized physical therapy programs are the most useful for these young baseball players. The program should include elbow range of motion and strength exercises and should progress to include strengthening of the forearm, upper arm, shoulder, back, and core.

  • Return to pitching. Players can return to throwing when they are pain-free with full range of motion and strength. They should progress gradually from non-throwing positions (like designated hitter), through less-throwing positions (like first and second base), to full-effort throwing positions. A return-to-pitching program, which outlines a progression of the number and distance of throws, should be discussed and set up for these young pitchers.

Most cases of Little League elbow clear up with rest and conservative management as described previously. However, the timeline for recovery, as with most overuse injuries, differs for each athlete. Not following the treatment plan may lead to long-term disability or deformity, including conditions like osteoarthritis.

  • Year-round fitness. Players need to recognize the benefits of year-round physical fitness and conditioning. Resistance training is important and useful for all baseball players and should include arm, shoulder, back, trunk, and hip strengthening, as well as aerobic conditioning.

  • Active rest. Baseball players need a period of “active rest” in which they do not throw but are able to play other sports. This rest period should be at least 3 to 6 months long to give the body time to rest and recover.

  • Pitching guidelines. Pitch counts are needed at all levels of baseball. See “Guidelines for Youth and Adolescent Pitchers” at These guidelines are important for all young pitchers, parents, and coaches to be familiar with. Athletes should be cautious about playing on multiple teams at the same time since the number of pitches adds up quickly.

  • Control, command, and speed. Young pitchers need to work first on control (getting the ball in the strike zone). After gaining control, they should work on command (being able to place the pitch in certain areas of the strike zone). Finally, after they master control and command, they can work on increasing pitch speed. Pitchers younger than 14 years should throw only fastballs and changeups. Curveballs can be added after age 14 and sliders after age 16.

  • Avoiding maximum-effort throws. Young pitchers need to avoid other high-demand throwing positions (catcher, shortstop, and third base) on days they have pitched. They should also rest from pitching for 24 to 48 hours after an outing, including backyard practice or working with a pitching coach.

  • Avoiding further injury. Athletes need to listen to their bodies carefully and avoid pitching through pain. An athlete who describes pain around the elbow or shoulder, popping, or discomfort with throwing should not be allowed to throw anymore that day until pain-free. After that, a careful plan for gradual return to throwing would include

    • Warm-up and throws with less than maximum effort

    • Pitching with less than maximum throws

    • Maximum-effort pitches

  • Proper mechanics. Correct pitching and throwing mechanics should be stressed at a young age. Poor mechanics can lead to injury. Biomechanics evaluation can be obtained from a qualified pitching coach or in a biomechanics laboratory.

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The American Academy of Pediatrics (AAP) is an organization of 67,000 primary care pediatricians, pediatric medical subspecialists, and pediatric surgical specialists dedicated to the health, safety, and well-being of all infants, children, adolescents, and young adults.

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Any websites, brand names, products, or manufacturers are mentioned for informational and identification purposes only and do not imply an endorsement by the American Academy of Pediatrics (AAP). The AAP is not responsible for the content of external resources. Information was current at the time of publication. The information contained in this publication should not be used as a substitute for the medical care and advice of your pediatrician. There may be variations in treatment that your pediatrician may recommend based on individual facts and circumstances.