Your elbow hurts when you throw

Where it hurts: Also medial, which is why it gets confused with UCL injuries constantly. The pain sits slightly more on the muscle belly, just below and forward of the medial epicondyle. It can feel more “muscular” than “ligament-y.”

When it hurts: During acceleration like a UCL issue, but also during gripping, wrist flexion, and sometimes just carrying heavy things. The key difference: it often hurts during warm-up throws and then settles down, whereas UCL pain tends to worsen as you ramp up intensity.

What it feels like: More of a burning or aching sensation than the sharp, specific pain of a UCL sprain. The area might feel stiff in the morning or after periods of rest. Grip strength may feel reduced.

The key question: Does squeezing a ball or making a fist reproduce the pain? Flexor-pronator issues are load-sensitive through the forearm muscles, not just through the throwing motion.

Where it hurts: The inside of the elbow, but with a twist. Literally. The ulnar nerve runs through a groove behind the medial epicondyle (your “funny bone”). Pain or tingling often radiates down the forearm into the ring finger and pinky.

When it hurts: This one is sneaky. It might not hurt during throwing at all. Instead, you notice numbness or tingling in your hand after throwing, at rest, or when sleeping with your elbow bent. Some throwers feel it snap or “sublux” over the bone during the throwing motion.

What it feels like: Electric, tingling, or “dead”. Very different from the muscular or ligamentous pain of the other conditions. Your ring finger and pinky might feel numb, weak, or like they're falling asleep. Some athletes notice decreased grip strength or trouble controlling the ball.

The key question: Do you have tingling or numbness in your ring and pinky fingers? If yes, ulnar nerve irritation is one possibility and deserves a closer examination.

Where it hurts: The back (posterior) of the elbow, specifically around the olecranon, the bony point you lean on. This is the opposite side from UCL pain, which is an important distinction.

When it hurts: During deceleration and follow-through, not acceleration. The moment after ball release, when your elbow snaps into extension and the olecranon jams into the fossa. Repeated valgus stress combined with forced extension creates bone spurs and impingement over time.

What it feels like: A locking or catching sensation at full elbow extension. You might feel like you can't fully straighten your arm, or that something is “blocking” at end range. It often develops gradually over a season rather than as a single acute event.

The key question: Do you have difficulty fully extending your elbow, or does it catch or lock? VEO is a mechanical problem (bone hitting bone) and it has a distinct mechanical feel.

Where it hurts: The outside (lateral) part of the elbow. Less common in throwers than medial pain, but it happens, particularly in position players who are also batting heavily, or in athletes with extensor overload from grip-intensive training.

When it hurts: Gripping, wrist extension against resistance, and sometimes during the release phase of throwing. Batting can aggravate it significantly. Unlike medial issues, lateral pain often shows up more during everyday activities: opening jars, shaking hands, turning doorknobs.

What it feels like: A burning or sharp ache on the outside of the elbow that worsens with gripping or lifting with the palm down. The area may be tender to touch. It tends to be persistent, the kind of pain that just... doesn't go away without intervention.

The key question: Does it hurt when you grip something firmly or lift with your palm facing down? If yes, the wrist extensors are likely involved.