Knee Pain When You Squat? The Real Cause Might Be Your Hips

Knee pain sends most people straight to icing the knee, wrapping the knee, and avoiding anything that puts load on the knee. Makes sense on the surface. It's also frequently treating the wrong joint.

The knee is what's called a "victim joint" in movement science circles. It sits between two joints, the hip and the ankle, that are supposed to provide most of the mobility and stability during movement. When the hip lacks proper mobility or the glutes aren't stabilizing correctly, or when the ankle doesn't have adequate range of motion, the knee gets forced to compensate for both. It absorbs rotational and shearing forces it wasn't designed to handle, and over time, that shows up as pain, especially during squatting, lunging, or descending stairs.

This is particularly common with weak glute medius function, the muscle responsible for preventing the knee from collapsing inward during movement. When that muscle isn't doing its job, the knee caves in slightly with every step or squat rep, creating chronic stress on the joint that eventually becomes symptomatic.

The fix isn't avoiding the movements that cause pain forever. It's addressing why the knee is taking on load it shouldn't be responsible for in the first place. That usually means glute activation and strengthening work, improving hip mobility, and in some cases addressing ankle stiffness that's limiting proper squat depth and mechanics.

This is exactly why a real movement assessment matters more than a generic "here's a knee exercise" video. Two people with knee pain can have completely different root causes, one might need glute strengthening, another might need ankle mobility work, and treating them the same way gets inconsistent results.

Our coaches build every program around identifying what's actually driving the dysfunction, not just treating the location of the symptom. If knee pain has been limiting your training for months without a clear explanation, that assessment is usually the missing piece.

FAQ

Q: Why does my knee hurt when I squat if I didn't injure it?
A: Non-traumatic knee pain during squatting is often caused by hip or ankle mobility restrictions, or weak glute muscles that fail to stabilize the knee properly during the movement.

Q: What muscle prevents knees from caving in during squats?
A: The glute medius is primarily responsible for preventing knee valgus, or inward collapse, during squatting and single-leg movements.

Q: Should you avoid squatting if you have knee pain?
A: Not necessarily. In many cases, addressing the underlying hip or ankle mobility issue allows squatting to continue safely and can actually improve knee pain over time.