Stairs load the knee far more than walking on flat ground, so they are often the first activity to show that something is wrong. Pain on the stairs is common, and in most people it can be improved with the right exercises. The first step is understanding what is likely causing it.
Common causes
- Kneecap (patellofemoral) pain: a dull ache at the front of the knee, worse on stairs, squatting, or after sitting for a long time.
- Osteoarthritis: stiffness that is worst in the morning or after rest, sometimes with grinding or swelling. It is more common after middle age.
- Meniscus irritation: pain along the joint line, sometimes with catching or a feeling of the knee giving way when you twist.
- Tendon overload: pain just below or above the kneecap after a sudden increase in walking, running or stair use.
- Weak thigh and hip muscles: when the muscles around the knee cannot share the load, the joint takes more strain than it should.
What you can try at home
- Cut back on the activities that clearly aggravate the pain for a few days, but keep moving. Complete rest tends to make knees stiffer and weaker.
- Use the handrail. Going up, lead with the stronger leg. Going down, lead with the sore one.
- Build thigh and hip strength gradually, for example with sit-to-stand from a chair and glute bridges. Stop if an exercise makes the pain sharply worse.
- Wear supportive footwear and avoid long periods of deep squatting or sitting cross-legged if they trigger pain.
- Heat or a cold pack can make you more comfortable, but they do not fix the cause.
When to see a physiotherapist
Book an assessment if the pain lasts more than two weeks, keeps coming back, limits your daily activities, or comes with stiffness, mild swelling or a feeling that the knee gives way. A physiotherapist checks your strength, alignment and movement pattern, then builds a graded plan so you are not guessing which exercises to do.
When to see a doctor first
- Pain after an injury with immediate swelling or inability to put weight on the leg.
- A knee that locks and will not straighten.
- A hot, red, swollen joint, especially with fever.
- Swelling or pain in the calf, which needs to be checked urgently.
How physiotherapy helps
Treatment usually combines targeted strengthening, manual therapy, taping where useful, and retraining how you climb, squat and walk. At VPARC in Kamachha, Varanasi, Dr. Prashant Punj (PT) assesses each patient one-to-one before planning treatment. If you are recovering from knee surgery, your surgeon's instructions always come first, and the rehabilitation plan is built around them.