Knee pain is a prevalent problem that can affect people of any age or lifestyle. It can be caused by a variety of factors, from injuries to medical conditions. Understanding the common causes of knee pain is important for proper diagnosis and treatment. Here, we break down some of the key culprits behind this discomfort.
Injuries
Injuries are among the most common causes of knee discomfort. This includes sprains, strains, torn ligaments (like the ACL or MCL), and fractures. These injuries often occur during sports activities or accidents. Overuse injuries, such as runner’s knee or jumper’s knee, can also lead to knee pain.
Arthritis
Arthritis is another common cause of knee pain, especially among older adults. Osteoarthritis, the most prevalent type, occurs when the cartilage that cushions the joints wears down over time. Rheumatoid arthritis, an autoimmune disorder, can also affect the knee joint, leading to pain, swelling, and stiffness.
Tendinitis
Tendinitis refers to inflammation or irritation of the tendons surrounding the knee joint. This condition can result from repetitive movements or overuse, causing pain and swelling around the knee. Patellar tendinitis, often seen in athletes who engage in jumping sports, is a type of tendinitis that affects the tendon connecting the kneecap to the shinbone.
Meniscus Tears
The meniscus is a rubbery cartilage that acts as a cushion between the thighbone and shinbone. Tears in the meniscus can occur due to sudden twisting movements or degeneration over time. These tears can cause pain, swelling, and stiffness in the knee joint.
Bursitis
Bursae are small sacs filled with fluid that cushion the knee joint. When these sacs become inflamed, typically due to repetitive kneeling or prolonged pressure on the knees, it leads to a condition called bursitis. This might cause pain and swelling near the knee.
Obesity
Carrying excess weight puts added stress on the knee joint, increasing the risk of developing knee pain and other related conditions such as osteoarthritis. Maintaining a healthy weight through regular exercise and a balanced diet can help alleviate knee pain associated with obesity.
