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Pain around the kneecap with stairs or squats

Also called: Runner's knee, patellofemoral pain

Pain around the kneecap with stairs, squats, or after sitting is often patellofemoral pain (runner's knee). It usually improves with strengthening exercises.

Common causesPatellofemoral pain, overuse
Usually serious?Usually not
Get checked ifSwelling or locking
If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.

Overview

Common in runners and teens.

Weak hips and thighs contribute.

When to get medical care

Call 911Not an emergency.
Get care todaySwelling after injury.
See a doctor soonPain lasting weeks.

Causes

Causes include overuse and muscle imbalance.

OwieClear has pages on 1 condition that can cause pain around the kneecap with stairs or squats. Each shows how soon to get care.

Common causes

  • Runner's knee (patellofemoral pain)Often treated at home

    Pain around or behind the kneecap that gets worse with stairs, squatting, running, or sitting with bent knees for a long time.

What you can do at home

  • Strengthen thigh and hip muscles.
  • Reduce activity that hurts.

Medicines

Physical therapy helps.

At the doctor

Diagnosed by exam.

Questions you may be asked

  • Activities

The exam

A knee exam.

Tests

  • Usually none

Prevention

Train smart.

  • Build up slowly

Check your symptoms

Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.

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Sources

Last updated 2026-11-13.