Why do I have a lot of pain and stiffness in my knee while crouching and kneeling?

Hello,

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As per the information provided by you, it seems that you might have developed osteoarthritis of the knee. Some of the clinical features are pain, stiffness, and swelling. I would suggest you avoid any activity related to your occupation of roofing as it will aggravate your condition. Kindly start to use a knee brace to prevent any further stress on the knee. Start doing knee strengthening exercises. You can see a lot of them online. For pain and stiffness, I would suggest you apply any analgesic pain gel over the area and cover it with a hot water bag for 10-15 minutes. Avoid cross-leg, sitting, squatting, prolonged standing and walking and running, and stair climbing. Also, I would suggest meeting an orthopedic or physiotherapist to do your knee examination and also tell them to prescribe an x-ray for your knee joint.