Common Knee Symptoms
Learn about the most common signs and symptoms of knee conditions. Understanding your symptoms helps you discuss them more clearly with your consultant during your clinical assessment.
Content is intended for general patient education. Each page shows its current clinical review status below.
Not sure which symptom matches you?
Answer a couple of quick questions and we'll point you to the most relevant page.
Knee Pain
Gradual or sudden onset discomfort in or around the knee joint, affecting movement, stairs, and weight-bearing.
Swollen Knee
An accumulation of excess fluid within or around the knee joint, resulting in stiffness, tightness, and puffiness.
Stiff Knee
A restriction in the joint's range of motion, making it difficult to fully bend or straighten the knee.
Clicking or Grinding Knee
Crepitus, clicks, pops, or grinding noises occurring inside the knee joint during bending, climbing, or squatting.
Locked Knee
A mechanical block where the knee joint becomes physically stuck in a bent or straight position and cannot be moved.
Knee Giving Way
A sudden buckling or instability of the knee joint, making you feel insecure or lose balance during weight-bearing.
Unable to Straighten the Knee
An inability to extend the leg fully, often caused by a mechanical block, joint swelling, or protective muscle guarding.
Pain at the Front of the Knee
Anterior knee pain located around, behind, or below the kneecap, aggravated by stairs, squatting, or running.
Pain at the Back of the Knee
Tightness, aching, or swelling in the popliteal space behind the knee, sometimes associated with fullness or difficulty bending.
Pain on the Inside of the Knee
Medial knee pain along the inner joint line, commonly aggravated by twisting, walking, or weight-bearing.
Pain on the Outside of the Knee
Lateral knee pain along the outer joint line or tendon, often aggravated by running, cycling, or turning.
Knee Pain After an Injury
Acute knee pain following a sports collision, twisting event, fall, or direct impact to the joint.
Concerned about knee symptoms?
Our consultant-led clinic can provide direct clinical evaluation, coordinate MRI scans, and recommend treatment plans tailored for your knee health.
Medical Disclaimer
This website provides educational and general information about knee symptoms, conditions, and treatments. The content is for informational purposes only and does not constitute medical advice, diagnosis, or a treatment plan. It should not be used as a substitute for a professional consultation, examination, or clinical decision-making by a qualified orthopaedic specialist.
If you are experiencing symptoms or are concerned about a knee problem, please arrange a clinical consultation. If you have urgent symptoms, severe pain, or are unable to put weight on your leg, please read our urgent advice guidance or contact emergency services immediately (dial 999 or NHS 111).