Knee stiffness is a common symptom that can be caused by a variety of conditions or injuries. It is often characterized by difficulty moving the knee joint or a feeling of tightness or restriction in the knee.
Some common causes of knee stiffness include:
Arthritis: Arthritis is a condition in which the joint becomes inflamed, which can cause stiffness and pain.
Injury: An injury to the knee, such as a sprain or strain, can cause stiffness and limited mobility.
Tendinitis: Tendinitis is an inflammation of the tendons that connect the muscles to the bones, which can cause stiffness and pain.
Bursitis: Bursitis is an inflammation of the bursae, small fluid-filled sacs that cushion the joint, which can cause stiffness and discomfort.
Osteoporosis: Osteoporosis is a condition in which the bones become weak and brittle, which can cause stiffness and pain in the knee.
Treatment for knee stiffness depends on the underlying cause. Some common treatments include physical therapy, rest, ice, compression, and elevation (RICE), over-the-counter pain medication, and, in some cases, surgery. It is important to see a doctor if knee stiffness persists or is accompanied by other symptoms, such as swelling or redness, as these may indicate a more serious underlying condition.