Knee pain is one of the most common reasons people visit an orthopaedic clinic. In many cases it follows overuse (a longer walk than usual, a new exercise routine, or a day of stairs) and settles within a few days with rest, ice and simple pain relief.
It's reasonable to manage mild pain at home for one to two weeks. Offload the knee, avoid deep squats, use ice for 15 minutes a few times a day, and take an over-the-counter pain reliever if you have no reason to avoid it.
See a doctor sooner if the knee swells noticeably, locks or catches, gives way, or if pain follows a twisting injury with a popping sensation, as these can indicate a ligament or cartilage (meniscus) tear that needs examination and often an MRI.
Pain that persists beyond two to three weeks, night pain, or difficulty bearing weight should never be ignored, especially in older adults, where X-rays may reveal arthritis that changes the whole treatment plan. Early assessment usually means simpler treatment.
Medical Disclaimer: This article provides general orthopaedic education and is not a substitute for clinical diagnosis. If your symptoms match anything described here, a thorough examination is the safest next step.