My Kid Says His Elbow Hurts. Now What?

That sentence shows up after a tournament, in the car ride home, or sometimes in the middle of dinner. And it lands different than a normal kid complaint, because every parent of a baseball or softball player already knows enough to be scared of it.

This is the post for that moment. Not a diagnosis. Not a verdict. A way to think clearly when your brain wants to spiral.

First, the thing nobody tells parents

Pain is not the first sign of a problem. It is the late one.

In one study, researchers used MRI to look at the throwing elbows of 64 youth baseball players, ages 9 to 13. None of them had any symptoms. No pain, no complaints, no reason to think anything was wrong. More than half of them, 53.1 percent, showed structural changes in the medial elbow ligament (Tanaka et al., 2017).

This is not to scare you. It is to recalibrate one assumption: that pain is what tells you something is going on. The arms of growing pitchers adapt and remodel under load constantly. A kid who finally says "my elbow hurts" is often a kid whose arm has been talking quietly for weeks before he found the words.

That changes what you do next.

Soreness vs. signal

There is normal post-outing soreness. There is also something else. Here is how to tell them apart in the first 24 to 48 hours.

Normal soreness looks like:

• Diffuse, often in the muscle of the forearm or the back of the shoulder
• Better the next morning than the night before
• Goes away with light movement
• Resolves within 48 hours

Signal you take seriously:

• Sharp pain at a specific spot, especially the inside (medial) elbow
• Pain that gets worse, not better, over the first two days
• Pain with everyday motions: brushing teeth, opening a door, lifting a backpack
• Loss of velocity or accuracy in the next bullpen
• A "pop" or sudden tightness during a throw
• Numbness or tingling into the hand or pinky finger

If you are seeing items in the second list, the next throw is not the next priority. The next conversation is.

Three questions to ask your kid

You do not need to interrogate. You need information. Try these.

1. "Where exactly does it hurt? Point to it with one finger."

General soreness gets a hand-wave. A specific point, especially on the inside of the elbow, is more concerning. Pain at the inside of the elbow in a growing athlete can involve the growth plate (medial epicondyle apophysitis, often called "Little League elbow") or the ulnar collateral ligament.

2. "When did it start, and was there a moment it changed?"

You are looking for two patterns. Gradual onset that built across an outing or weekend is one story. A specific throw where something felt different is another. Both matter. The second one matters more urgently.

3. "Has your arm felt tired lately?"

Not hurting. Tired. This is the one parents miss most often, and it is the one that matters most. In a case-control study comparing 95 youth pitchers who needed shoulder or elbow surgery to 45 who did not, the kids who regularly pitched while fatigued were 36 times more likely to be in the surgery group (Olsen et al., 2006).

Thirty-six times. Not double. Not five times. Thirty-six.

If your kid says yes to this, that is not a complaint. That is data.

When to call the doctor

Sometimes the answer is rest and watch. Sometimes it is not. Call a doctor if any of these apply.

• Pain that has not improved after 7 days of complete rest from throwing
• Visible swelling, bruising, or a bump on the elbow
• Inability to fully straighten or fully bend the elbow
• Numbness, tingling, or weakness into the hand
• A specific moment during a throw where something popped, gave way, or felt different
• Recurring elbow pain that comes back every season

Look for a sports medicine physician or pediatric orthopedist with experience in throwing athletes. A general pediatrician is a fine starting point, but for anything that recurs or does not resolve quickly, you want someone who sees this every week. Imaging decisions, ultrasound vs. MRI, are theirs to make, not yours and not the coach's.

What to ask the coach

This is the conversation parents avoid because it feels confrontational. It should not be. Coaches who care about their players want this information.

Useful, non-accusing questions:

• "How many pitches did he throw this weekend, including warm-ups and bullpens?"
• "How many days of full rest is he getting before his next outing?"
• "Did he look like he was laboring at the end of his last appearance?"
• "Can we keep him off the mound for the next 7 to 10 days while we sort this out?"

A good coach answers these in detail. A coach who cannot tell you the pitch count, or who pushes back on the rest, is giving you useful information about how to manage your kid's workload going forward. That is worth knowing too.

The bigger problem most parents do not see

Most parents only find out their kid had a workload problem after the kid gets hurt. By then, the conversation is about recovery and rehab, not prevention.

What is underneath the panic moment is usually weeks or months of small things that nobody was tracking. A bullpen that ran long. A tournament where rest got skipped. A growth spurt that made the same workload heavier on bones that had not caught up yet. A long catch session counted as zero throws when it was really 80.

These are not dramatic. They are just invisible if nobody is looking. The Olsen study identified three workload risk factors with a clear pattern: averaging more than 80 pitches per game nearly quadrupled the odds of needing surgery (3.83x), pitching competitively more than 8 months per year increased the odds by fivefold (5.05x), and pitching while fatigued multiplied them by 36 (36.18x) (Olsen et al., 2006).

None of those need a doctor to spot. They need somebody watching. For a deeper look at the workload metric pro teams use for exactly this, see our parent's guide to ACWR.

What we built Diamond Arm Lab to do

Diamond Arm Lab does not diagnose anything. It does not clear your kid to throw and it does not tell you to stop. What it does is keep a quiet record of what your athlete's arm has been doing, week after week, so when a moment like this one happens, you are not starting from zero. You have a record. You have context. You have a number to bring to the coach and a baseline to bring to the doctor.

The point is not to be cautious. It is to have the conversation before the conversation is forced on you. If your kid said their elbow hurts today, the next throw is not the question. The next conversation is. You can start a free trial and start logging today.

Citations

• Olsen, S. J., Fleisig, G. S., Dun, S., Loftice, J., & Andrews, J. R. (2006). Risk factors for shoulder and elbow injuries in adolescent baseball pitchers. The American Journal of Sports Medicine, 34(6), 905-912.
• Tanaka, K., Okamoto, Y., Makihara, T., Yoshizawa, T., & Yamazaki, M. (2017). Clinical interpretation of asymptomatic medial collateral ligament injury observed on magnetic resonance imaging in adolescent baseball players. Japanese Journal of Radiology, 35(6), 319-326.
• Fleisig, G. S., & Andrews, J. R. (2012). Prevention of elbow injuries in youth baseball pitchers. Sports Health, 4(5), 419-424.