Why does my knee suddenly hurt?
1. Acute Injury: A sudden, sharp pain in the knee can be caused by an acute injury. This could occur during sports, accidents, or falls, resulting in damage to structures like ligaments, cartilage, or bones in the knee. Sprains, strains, and fractures are examples of acute injuries.
2. Overuse: Repetitive stress on the knee due to activities such as running, jumping, or squatting can cause inflammation and pain in the knee. This is common in athletes or individuals who engage in physically demanding activities.
3. Tendonitis: Inflammation of tendons surrounding the knee, such as patellar tendonitis (runner's knee) or iliotibial band (IT) band syndrome, can result in sudden knee pain. These conditions are characterized by repetitive overuse and can cause discomfort during specific movements.
4. Meniscus Tears: The meniscus, a piece of cartilage that acts as a shock absorber in the knee, can tear due to sudden twisting or pivoting movements. Meniscus tears can cause a sudden sharp pain or a catching sensation in the knee.
5. Ligament Sprains: Ligaments are strong bands of tissue that stabilize the knee joint. Sprains occur when ligaments stretch or tear beyond their normal range, causing sudden knee pain and swelling.
6. Arthritis Flare-Ups: Conditions such as osteoarthritis or rheumatoid arthritis can cause sudden increases in knee pain and inflammation. These flare-ups can be triggered by various factors like changes in weather, stress, or increased physical activity.
7. Dislocated Kneecap: A sudden shift or dislocation of the kneecap (patella) can cause intense knee pain and instability.
8. Infections: In rare cases, sudden knee pain can be caused by infections in the knee joint or surrounding structures, such as septic arthritis or bursitis.
9. Medical Conditions: Underlying health conditions, such as gout or pseudogout, can lead to sudden knee pain due to the accumulation of crystals in the joint.
If you experience sudden knee pain, it's essential to consult with a healthcare professional for an accurate diagnosis. They can assess your symptoms, perform examinations, and order imaging tests if necessary to determine the cause of the pain and recommend appropriate treatment. Seeking prompt medical attention can help ensure proper management of the condition and prevent further complications.