Little League Shoulder: What Parents and Baseball Players Need to Know

By Dr. Carmen Jansante, PT, DPT, CSCS Undefeated Physical Therapy & Performance

If you’re a baseball parent, coach, or athlete, this is the time of year when we start seeing a spike in shoulder injuries.

At Undefeated Physical Therapy & Performance, we’ve seen nearly 10 cases of Little League Shoulder in the past month alone. As recreational baseball wraps up and summer travel ball ramps up, throwing volume often increases dramatically. More games, more practices, more showcases, and less recovery can create the perfect storm for injury.

The good news? When caught early, Little League Shoulder responds very well to proper treatment and a structured return-to-throwing plan.

What Is Little League Shoulder?

Little League Shoulder is an overuse injury involving the growth plate of the upper arm bone (humerus) in a young throwing athlete.

The growth plate is located near the shoulder and remains open until skeletal maturity. Because it is softer than mature bone, repetitive throwing can place excessive stress on this area.

Over time, the growth plate becomes irritated and can begin to widen, creating pain and inflammation. In more severe cases, continued throwing can lead to significant injury and prolonged time away from the game.

Simply put: Little League Shoulder occurs when a young athlete’s shoulder cannot recover from the amount of stress being placed on it.

What Causes Little League Shoulder?

The number one cause is overuse.

Young athletes today often play baseball year-round, compete on multiple teams, attend showcases, and participate in private lessons. While the desire to improve is admirable, the shoulder’s growth plate has limits.

Common risk factors include:

• Excessive pitch counts

• Playing on multiple teams

• Pitching while fatigued

• Throwing year-round without adequate rest

• Sudden increases in throwing volume

• Poor recovery habits

• Inadequate strength and conditioning

While volume is usually the biggest factor, we also see athletes who simply generate more force than their bodies can currently tolerate. Their arm is producing high levels of stress, but their strength, mobility, and tissue capacity haven’t caught up yet.

Signs and Symptoms of Little League Shoulder

Common symptoms include:

• Shoulder pain while throwing

• Pain after games or practices

• Decreased throwing velocity

• Loss of throwing accuracy

• Shoulder soreness that doesn’t improve with rest

• Complaints of a “dead arm”

• Pain when attempting to throw hard

If your child is experiencing shoulder pain while throwing, it should never be ignored.

Pain is a signal that something is wrong.

Why Early Diagnosis Matters

One of the biggest mistakes we see is athletes trying to throw through the pain.

The earlier Little League Shoulder is identified, the easier it is to manage.

When caught early, athletes often require a shorter shutdown period and can begin rebuilding safely. When ignored, the injury can worsen and potentially lead to a much longer recovery process.

The goal is not simply to get rid of pain.

The goal is to allow the growth plate to heal while addressing the underlying factors that caused the injury in the first place.

How We Treat Little League Shoulder

At Undefeated Physical Therapy & Performance, we take a comprehensive approach to treatment.

The first step is usually a period of complete throwing shutdown.

Depending on symptoms, we may also temporarily limit hitting activities if they reproduce pain.

Once symptoms calm down, our focus shifts to restoring the athlete’s foundation.

Phase 1: Restore Motion and Eliminate Pain

We begin by:

• Improving shoulder mobility

• Restoring range of motion

• Reducing pain

• Addressing muscular imbalances

• Creating a plan that protects the healing growth plate

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Phase 2: Build the Engine

Baseball is a full-body sport.

Many athletes place excessive stress on the arm because they lack strength elsewhere.

We focus heavily on:

• Lower body strength

• Core stability

• Rotational power

• Scapular strength

• Posterior shoulder strength

When athletes learn to generate force through their legs and trunk, less stress is placed on the shoulder.

Phase 3: Rebuild Arm Capacity

Once pain-free strength and motion have returned, we begin progressively loading the arm.

This often includes:

• Two-handed plyometrics

• One-handed plyometrics

• Deceleration training

• Arm care exercises

• Medicine ball drills

• Towel throwing progressions

The goal is to gradually teach the shoulder how to tolerate force again.

Phase 4: Return to Throwing

Finally, athletes begin a structured return-to-throwing program.

This isn’t simply “go throw and see how it feels.”

Every throwing session is carefully progressed based on:

• Distance

• Throw count

• Intensity

• Recovery

• Symptom response

This step-by-step approach helps reduce reinjury risk and builds confidence before returning to competition.

Why Choose Undefeated Physical Therapy & Performance?

Throwing injuries require more than generic physical therapy.

At Undefeated Physical Therapy & Performance, baseball athletes are what we do.

We work with:

• Little League athletes

• Travel baseball players

• High school athletes

• Collegiate players

• Professional baseball players

Our evaluations go beyond pain.

We assess:

• Shoulder mobility

• Total body strength

• Throwing demands

• Force production

• Arm care habits

• Return-to-play readiness

Every athlete receives an individualized plan designed specifically for their sport and position.

Looking for Little League Shoulder Treatment in Pittsburgh?

If your child is experiencing shoulder pain while throwing, don’t wait for it to become a bigger problem.

The earlier Little League Shoulder is addressed, the smoother the recovery process tends to be.

At Undefeated Physical Therapy & Performance, we specialize in helping baseball and softball athletes return to the field stronger, healthier, and more resilient than before.

If you’re looking for Little League Shoulder treatment in Pittsburgh, we’d be honored to help guide your athlete through the recovery process.

Dr. Carmen Jansante, PT, DPT, CSCS Undefeated Physical Therapy & Performance Enhancing Performance. Elevating Recovery.