Does plica syndrome cause knee clicking and grinding?

A plica is a fold of tissue inside the knee. When it becomes irritated or thickened, it may rub as the knee moves, producing clicking, snapping, or a grinding sensation. Discomfort may be felt around the front or inner side of the knee, and kneeling, stairs, squats, or prolonged sitting can make symptoms more noticeable. Knee noises are also common with other causes and may occur without a serious problem; pain, swelling, catching, and loss of movement provide more useful clues than sound alone.

Temporarily reduce repeated deep squats, kneeling, stairs, or other movements that bring on pain. Keep the knee gently moving within a comfortable range rather than holding it still all day. A physiotherapist may assess hip, thigh, and knee strength, then prescribe exercises to improve control and gradually reload the joint. Supportive footwear and a gradual return to sport can reduce sudden demands. Stop an exercise that causes sharp pain or increasing swelling and discuss a modification.

Arrange an assessment if clicking is painful, persistent, associated with swelling, or limiting stairs, work, or sport. Seek prompt help after a significant twist or blow if the knee gives way, becomes visibly swollen, cannot fully move, or you cannot bear weight. A knee that becomes truly stuck also needs timely evaluation because several conditions can restrict movement.

Ask where the sound is coming from, whether your movement pattern suggests an irritated plica, and whether another knee problem needs checking. Ask which exercises are appropriate, what activity to pause, and what change should trigger earlier review.