Knee arthritis is a condition in which the knee joint gradually loses its smooth, protective cartilage. Cartilage acts as a cushion between the bones and allows the knee to move smoothly without pain. When this cartilage wears away, the bones may start rubbing against each other, causing pain, stiffness, swelling, and difficulty with movement.

The most common form of knee arthritis is osteoarthritis, which usually develops gradually over time. It is often associated with aging, but factors such as excess body weight, previous knee injuries, repetitive stress on the joint, family history, and certain medical conditions can increase the risk of developing arthritis at an earlier age.

In the early stages, knee arthritis may cause occasional discomfort after prolonged walking, climbing stairs, squatting, or standing for long periods. Many people initially ignore these symptoms, considering them a normal part of aging. However, as the condition progresses, the pain may become more frequent and begin to interfere with daily activities.

Common symptoms include pain in and around the knee joint, morning stiffness, swelling, reduced flexibility, difficulty sitting cross-legged, trouble climbing stairs, and a grinding or cracking sensation during movement. Some patients may also notice that the knee feels unstable or that their walking speed and endurance have gradually decreased.

Knee arthritis is usually diagnosed through a combination of medical history, physical examination, and imaging studies such as X-rays. Early diagnosis is important because appropriate treatment can help slow the progression of symptoms and improve quality of life.

Treatment depends on the severity of arthritis and the impact it has on daily activities. In many cases, symptoms can be managed with weight reduction, activity modification, physiotherapy, muscle-strengthening exercises, and medications prescribed by a healthcare professional. Maintaining an active lifestyle and keeping the muscles around the knee strong can help reduce stress on the joint and improve function.

When arthritis becomes advanced and pain persists despite conservative treatment, surgical options may be considered. The goal of treatment is always to relieve pain, improve mobility, and help individuals maintain their independence and quality of life.

Persistent knee pain should not be ignored. Seeking medical advice at an early stage can help identify the cause of symptoms and allow timely management before the condition significantly affects everyday activities.