There are many different potential causes of knee pain and tightness, and you will need to go see your primary care doctor
about the issue, particularly if symptoms are persisting and not getting better.
Many knee problems
are the result of overuse injuries, typically from extensive physical activity. For example, runner's knee is one of the most common types of knee injuries, and this can cause tightness in the knee, and pain especially with kneeling, sitting, and climbing stairs. Runner's knee can be appropriately treated, especially if diagnosed early, with physical therapy, stretching and strengthening exercises, rest, and anti inflammatory medications.
It will also be important to rule out knee arthritis
, which becomes an increasingly common problem, especially if you are middle aged or elderly. If you have any swelling, warmth, or redness of the knee, these could be signs of a serious arthritis problem, or a knee infection, or an inflammation of the protective tissue around the knee known as bursitis.
When you go to see your doctor, they will perform a complete examination of the knee, which should help you figure out what is going on. Make sure to mention to your doctor if you have had any falls, sprains or other knee injuries, and also which types of activity most aggravate the symptoms.