Fluid in the knee, also known as knee effusion, can be caused by various factors, including injuries and underlying conditions. Some common causes of fluid buildup in and around the knee joint are:
- Injuries : * Torn ligaments, particularly the anterior cruciate ligament (ACL) * Cartilage (meniscus) tear * Irritation from overuse * Broken bones
- Underlying diseases and conditions : * Osteoarthritis * Rheumatoid arthritis * Infection * Gout * Pseudogout * Bursitis * Cysts * Tumors
- Repetitive use injuries such as bursitis, which can lead to a fluid-filled swollen knee
When the knee is healthy, it contains a small amount of fluid to lubricate the joint. However, excess fluid can accumulate due to the factors mentioned above, leading to swelling, pain, and stiffness. It's important to identify the underlying cause of the fluid buildup to determine the appropriate treatment
