Hello, Thanks for your query. They could be possibly due to Osteoarthritic changes in your knees (owing to typical symptom of pain while getting up from a seated position). Xrays of the involved joints will show up the severity of the arthritic (wear & tear) changes in the joints. general management guidelines for Osteoarthritis of knee joint are as follows - * ACTIVITY MODIFICATION -It is important to maintain as much activity and joint motion as possible, but impact activities will aggravate arthritis. Running and jumping will often accelerate cartilage loss from the joint. The key is to focus on low impact activities, such as swimming or cycling. * USING CANES: Assistive devices can make it easier to go about your day without stressing your painful joint. A cane may take weight off your knee or hip as you walk. Carry the cane in the hand opposite the leg that hurts. * LOAD REDUCTION : Protecting the joint from excessive load may slow down the rate of cartilage loss. It is also effective in relieving pain. The heavier you are, the more stress you put on your joints. Weight reduction for obese patients, wearing shock-absorbing shoes, avoiding activities like climbing stairs and using a walking stick are worthwhile. * ANALGESIC MEDICATION : Simple over the counter medications like acetaminophen is sufficient in most cases. If this fails to control pain, a non-steroidal anti-inflammatory drug may be better. * PHYSICAL THERAPY : The mainstay of treatment in the early case is physical therapy, which should be directed at maintaining joint mobility and improving muscle strength. I do hope that you have found something helpful and I will be glad to answer any further query. Take care