Knee Pain on Stairs: Common Causes and How Physiotherapy Can Help
If you experience knee pain on stairs, you’re not alone. Going up or down stairs places greater demands on the knee than walking on a flat surface, which can make an underlying knee problem much more noticeable.
You may feel pain around the kneecap, along the inside or outside of the knee, or deeper within the joint. Some people notice discomfort only when going downstairs, while others experience pain when climbing stairs, squatting, getting up from a chair, or exercising.
Understanding what may be contributing to your knee pain on stairs is an important first step toward managing it effectively.
Why Does Knee Pain on Stairs Happen?
Climbing and descending stairs requires your knee to bend while supporting your body weight. This increases the demand on the muscles surrounding the hip and knee and increases forces through the kneecap and knee joint.
If there is irritation within the joint, reduced strength, limited mobility, or changes in how your hip, knee, or foot moves, stairs may become uncomfortable.
The cause is not always the knee itself. Hip strength, ankle mobility, muscle control, activity level, previous injuries, and movement patterns can all influence how much stress is placed on the knee.
Common Causes of Knee Pain on Stairs
1. Patellofemoral Pain
Patellofemoral pain is a common cause of pain around or behind the kneecap. Symptoms may become more noticeable during activities that require repeated knee bending, including climbing stairs, going downstairs, squatting, running, or sitting for prolonged periods.
Several factors may contribute, including changes in training load, muscle weakness, movement control, and irritation of structures around the kneecap.
2. Knee Osteoarthritis
Osteoarthritis can cause knee pain, stiffness, swelling, and reduced mobility. People with knee osteoarthritis may notice that stairs become increasingly uncomfortable, particularly when the knee has to bend while bearing weight.
Although osteoarthritis involves changes within the joint, symptoms and function do not always correspond directly to what appears on an X-ray. Strengthening, appropriate physical activity, and physiotherapy can often play an important role in maintaining mobility and function.
3. Patellar Tendon Irritation
The patellar tendon connects the kneecap to the shin bone. Repetitive loading from running, jumping, sports, or sudden increases in exercise can irritate the tendon.
Pain is often felt below the kneecap and may become more noticeable during stairs, squats, jumping, or other activities that load the knee.
4. Meniscus-Related Knee Pain
The menisci are cartilage structures within the knee that help distribute load and provide joint stability. Meniscus injuries or age-related changes can sometimes cause pain with stairs, twisting, deep knee bending, or squatting.
Some people may also experience swelling, clicking, catching, or difficulty fully bending or straightening the knee.
5. Muscle Weakness or Reduced Control
Your quadriceps, hamstrings, gluteal muscles, and calf muscles all contribute to controlling movement through the hip and knee.
Reduced strength or coordination can change how forces are distributed through the leg. This may make everyday activities such as climbing stairs more demanding and contribute to knee pain on stairs.
6. Previous Knee Injury
A previous ligament, meniscus, tendon, or other knee injury can affect strength and movement even after the initial injury has healed.
If rehabilitation was incomplete or strength has decreased over time, symptoms may return when activity levels increase.
Why Does My Knee Hurt More Going Down Stairs?
Some people find that going downstairs is considerably more uncomfortable than going up.
When descending stairs, your quadriceps work to control your body as you lower yourself onto the next step. This requires significant control through the knee and can increase loading around the kneecap.
Pain going downstairs can therefore be associated with patellofemoral pain, reduced quadriceps or hip strength, joint irritation, or difficulty controlling the movement.
The location and behaviour of your symptoms can provide useful information, but a physical assessment is often needed to determine what is contributing to your pain.
How Physiotherapy Can Help With Knee Pain on Stairs
Physiotherapy treatment should be based on the cause of your symptoms rather than simply treating the location of the pain.
A physiotherapy assessment may look at:
Knee mobility and range of motion
Hip, knee, and ankle strength
Muscle flexibility
Balance and lower-limb control
Walking, squatting, and stair mechanics
Activity and exercise history
Previous injuries
Areas of tenderness or swelling
Based on the findings, your treatment plan may include progressive strengthening exercises, mobility exercises, movement retraining, manual therapy when appropriate, education about activity modification, and a gradual return to exercise or sport.
The goal is not only to reduce symptoms but also to improve the strength and movement capacity needed for everyday activities.
Should You Avoid Stairs if Your Knee Hurts?
Not necessarily.
Completely avoiding movement is not always the best solution for knee pain. However, repeatedly performing an activity that significantly aggravates your symptoms may not be helpful either.
Temporary modifications—such as reducing unnecessary stair use, using a handrail, adjusting exercise volume, or changing certain activities—may help while you work on improving strength and tolerance.
A physiotherapist can help determine an appropriate level of activity based on your symptoms and individual condition.
When Should You Have Knee Pain Assessed?
Consider seeking an assessment if your knee pain on stairs is persistent, worsening, limiting your daily activities, or preventing you from exercising comfortably.
More urgent medical assessment may be appropriate if knee pain follows significant trauma, you cannot bear weight, the knee becomes markedly swollen or deformed, or you develop redness, warmth, fever, or other concerning symptoms.
Physiotherapy for Knee Pain in Oakville
If knee pain on stairs is making it difficult to move comfortably, a physiotherapy assessment can help identify factors that may be contributing to your symptoms.
At Uniphysio & Associates in Oakville, our physiotherapy team provides individualized assessments and treatment plans focused on improving mobility, strength, movement, and function.
Whether your symptoms occur while climbing stairs, going downstairs, exercising, or during everyday activities, understanding the underlying problem can help guide an appropriate treatment and rehabilitation plan.
Contact Uniphysio & Associates or book a physiotherapy assessment to learn more about your knee pain and the treatment options that may be appropriate for you.
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(905) 997-1677
