Knee joint sounds can be caused by air bubbles accumulating, warning of arthritis, injury, but can also be a normal phenomenon.
Knees bear the weight of the body when walking, can be injured, worn out and make a grinding or cracking sound. Here are the causes of this condition.
Air bubbles
A normal healthy knee joint can make a popping sound. This is caused by air bubbles in the area around the joint that build up over time, forming small bubbles in the synovial fluid. When we bend our knee, some of the bubbles burst. This is normal and does not cause pain.
Meniscus injury
The meniscus is a piece of fibrous cartilage on either side of the knee that provides extra cushioning where the knee bones meet. A torn meniscus prevents the knee from bending normally, and the torn cartilage can get stuck in the joint, causing a popping or clicking sound.
Meniscal tears can occur suddenly during physical activity, and are common in young people. Warning signs include swelling, knee instability, and limping. The severity of pain and clicking can vary depending on the severity of the tear and its location.
It is normal for the knee to make a cracking sound and not feel pain. Photo: Freepik
Arthritis
Osteoarthritis occurs when the cartilage that lines the knee joint wears away, causing the exposed bones to rub against each other, damaging the joint and causing inflammation. This can cause unusual noises when bending the knee or swelling and pain. Many studies show that osteoarthritis is more likely to affect people who are 50 or older or are obese.
Patellofemoral pain syndrome
When the pressure between the kneecap and thighbone is greater than normal, the cartilage in the joint can begin to soften and wear away. This loss of smoothness can lead to patellofemoral pain syndrome. This is a common cause of knee pain in adolescents and adults under the age of 60. The person may hear a clicking sound and feel pain in the front of the knee when bending, squatting, or going down stairs.
It is normal for the knee to make a cracking sound and not feel pain when moving. Difficulty moving the knee, persistent knee pain, swelling or deformity of the knee are signs that there is a problem in this area.
To relieve pain from minor injuries, use the RICE first aid method for the first 24-72 hours. RICE stands for Rest, Ice, Compression, and Elevation. Anti-inflammatory medications and physical therapy may also help. If the injury is more severe and does not heal on its own, your doctor may recommend joint surgery.
Improve your knee joints by eating and exercising properly, at least 30 minutes a day at a moderate level, stretching before exercising and stopping when you feel pain. Supplementing foods rich in omega 3 fatty acids and collagen helps prevent or reduce joint pain.
Huyen My (According to Healthline, Medical News Today, GoodDrX )
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