Long-term knee and leg pain with swelling in older adults is often due to Osteoarthritis or sometimes inflammatory conditions. Help your mother by encouraging gentle exercise (like walking or physiotherapy), weight control, and using warm compresses for stiffness. Simple pain relief like Paracetamol can be used if suitable, and calcium/vitamin D may help bone health. If swelling is significant, worsening, or associated with redness or severe pain, she should see a doctor for proper evaluation and possible imaging or stronger treatment.

Body pain involving legs, joints, and muscles can happen for many reasons, such as vitamin D or B12 deficiency, tiredness, viral infections, overuse of muscles, poor posture, dehydration, stress, or early joint inflammation. In some people, long hours of sitting or standing, lack of physical activity, or poor sleep can also make the body feel stiff and painful. If the pain is more in joints with swelling or morning stiffness, it may suggest an inflammatory or arthritis-related issue, while a widespread dull ache is often linked to fatigue or nutritional deficiency. To feel better, start with light daily movement like walking or gentle stretching, as complete rest can sometimes worsen stiffness. A warm compress over painful areas may help relax muscles. Maintain good hydration and include balanced food with fruits, vegetables, protein, and calcium-rich items. Proper sleep and stress reduction also play an important role in recovery. If pain is persistent, worsening, associated with swelling, fever, weight loss, or severe weakness, it is important to get medical evaluation to find the exact cause and treat it properly.