Osteoarthritis:
As we age, the cushion-like cartilage between the bones in the knee wears down. This is the most common cause. This causes the bones to rub against each other and cause pain.
Injuries:
Ligament Tear: Injuries to the ligaments in the knee (e.g. ACL Tear) cause sudden pain and swelling.
Meniscus Injury: Tears in the cartilage inside the knee.
Obesity:
When the body gains weight, the knees bear the brunt of it. Excess weight accelerates the wear and tear of the cartilage in the knee.
Arthritis:
Rheumatoid Arthritis: A condition in which the body’s immune system mistakenly attacks the joints.
Gout: When uric acid levels increase in the blood, crystals accumulate in the joints, causing severe pain and swelling.
Muscle weakness:
If the quadriceps muscles that support the knee are weak, the knee joints experience more pressure and pain.
Lifestyle:
Daily climbing and descending stairs, prolonged standing, or improper exercise can lead to knee pain.
