All of these activities help your body’s vascular system in draining fluid and from the affected knee joint. Surgery is usually required to resolve the issue. Tumors around the knee joint are relatively uncommon, but if present they will cause noticeable fluid build-up, joint pain, and stiffness. Fortunately, the latter is more common, including mostly harmless cellular outgrowths like skin moles. Tumors can be cancerous and non-cancerous. The main difference is that rather than being full of fluid, tumors are masses of metabolically active cells that can continue to grow. Tumors are similar to cysts in the sense they are unwanted outgrowths that interfere with normal joint function. Cysts can resolve on their own, however, in extreme cases, they may need to be removed surgically. Here a bubble of synovial fluid causes noticeable localized swelling and may irritate you when bending the knee or squatting frequently. An example of this is the baker’s cyst – a common cause of knee pain and fluid build-up at the back of the joint. CystsĬysts are kind of like bursae – bubbles of fluid, but different in the sense that they are generally unwanted and form in areas where they increase pressure and friction in the knee joint. The prepatellar bursa is a common culprit for those experiencing excessive swelling and pain on the front of the knee cap. Sometimes due to excessive activity, they can become irritated and begin accumulating an excessive amount of synovial fluid. They help ensure that tendons, ligaments, and muscles slide past each other with minimal friction. Prepatellar Bursitisīursae are small sacs of lubricating synovial fluid that are deposited in around your joints. 5 If you suspect that you have an infection consult your doctor immediately as you will likely require antibiotic medicine. Staphylococcus aureus bacteria are one of the most common culprits for joint infections with over 500,000 Americans developing staph infections annually. Many of these organisms live on your skin, therefore any puncture or open wound presents a path for them to enter the joint. The causes can range from viruses, bacteria to parasites. You may remember the extreme swelling, skin redness, stiffness, and pain. We have all had infections at one point or another. Risk factors that influence your risk of developing gout are poor diet, high body weight, and genetic factors. One distinguishing factor with gout is that the pain typically occurs during the night. The onset of pain is unusually rapid and the swelling around the joint is visually apparent. When the uric acid crystallizes around a joint, it triggers a significant immune response. Underlying the excess uric acid production is typically poor functioning kidneys – failing to excrete the acid into the urinary system. 2 Uric acid crystallization stemming from a build-up of uric acid in the blood is the primary cause of gout. Gout, known as the disease of kings, affects approximately 2% of Americans and has become more common over time. Treatment for osteoarthritis depends on a variety of factors, to learn more about the disease check out: Guide to Osteoarthritis Treatment Options Gout The lack of cartilage and abnormal bone growth causes joint swelling, pain, and stiffness. As the cartilage wears, bone on bone friction begins to occur and eventually results in the formation of bone spurs. Osteoarthritis is characterized by the breakdown of cartilage between the bones in the knee joint. This leads to the joint to slowly degenerate causing pain and inflammation.Īccording to the Arthritis Foundation, osteoarthritisis the most common type of arthritis affecting over 31 million Americans. Rheumatoid arthritis occurs when the body’s immune system malfunctions and starts attacking otherwise healthy joint tissue. Both of these conditions result in the gradual breakdown of the knee joint – but in two completely different ways. The two most common types of arthritis are rheumatoid and osteoarthritis. Table 1: Common causes of knee pain and swelling by age Knee Arthritis – Common Water on the Knee Cause Some of which may be temporary, simply requiring rest, others may require surgery or permanent lifestyle changes. There are a variety of conditions that can cause your knee to become swollen (Table 1). ![]() Water on the knee is also known as knee joint effusion and swelling. If you are experiencing symptoms of water on the knee you should consult your doctor to determine the best course of treatment for you. All of this can cause discomfort while walking up and down stairs, kneeling, and squatting. You may also find that it feels stiff and painful when you place weight on it and is sore to the touch. When this occurs your knee may appear puffy and larger than usual. Water on the knee is characterized by the accumulation of fluid and inflammation around the knee joint.
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