Low back stress fractures - Junior tennis athletes should NOT ignore low back pain, as 40 percent of symptoms may be due to a low back stress injury and should be evaluated immediately. Early lesions may have good outcomes, but later stage injuries may have poor healing potential.
Growth plate injuries
Rotator cuff - The most common shoulder issues in adult or junior tennis players involve the rotator cuff. This can almost always be treated conservatively with proper rehabilitative methods and, sometimes, with on-court modifications when treated early. Junior players should also have their training evaluated further and should not typically require any intervention such as injections or surgery.
Tennis elbow - 50 percent of adult tennis players will acquire tennis elbow, which is typically a chronic tendon degenerative problem. This should not be treated with isolated steroid injections but more innovative methods to improve tendon healing as well as addressing stroke mechanics since it usually involves the recreational player. It should rarely require any surgical treatments if addressed properly.
Ulnar wrist pain - Aggressive wrist motion in the dominant wrist on the forehand and the non-dominant wrist on the backhand are the most common causes of ulnar wrist pain (wrist pain on the side of the pinkie). Sometimes this may be a relatively simple tendonitis, but other times may involve a more serious cartilage injury. Proper medical treatment, with possible alterations in strokes, may help these conditions if identified early.
Spondylolysis (low back stress fractures) - Junior tennis athletes should NOT ignore low back pain, as 40 percent of symptoms may be due to a low back stress injury and should be evaluated immediately. Early lesions may have good outcomes, but later stage injuries may have poor healing potential.
Sciatica or radiculopathy (pinched nerve)
Muscle Injuries/Muscle Cramping
Hip pain - Hip pain in the modern tennis game may be related to aggressive forehands. Sources of pain may include the joint, or the muscles supporting the joint. Joint-related issues may be complex and a proper evaluation of groin or hip pain in a tennis player may be necessary.