Persistent knee pain for one year, along with a cracking or clicking sound while sitting or standing, is commonly seen in conditions affecting the knee joint. A common cause is the gradual wear and tear of the cartilage, known as osteoarthritis. This can happen due to ageing, long-term knee strain, excess body weight, or sometimes after an old injury. Another possible cause is irritation or softening of the cartilage under the kneecap, which can create grinding or clicking sensations during movement. Weak thigh muscles or a mild ligament strain may also contribute to these symptoms. To help reduce discomfort, avoid putting too much stress on your knees, such as frequent squatting or repeated stair climbing. Gentle strengthening exercises for the leg muscles and regular stretching may help reduce pain. Maintaining a healthy weight also reduces pressure on the knees. Warm compresses may provide temporary relief. Pain-relieving medicines should only be taken after medical advice. It is best to consult an orthopaedic doctor for a thorough examination and, if needed, an X-ray to identify the exact cause and plan appropriate treatment.