A hot knee is often a sign of underlying inflammation. Several conditions can cause this, including arthritis, infection, bursitis, and even injury. The warmth is a result of increased blood flow to the area as the body attempts to heal.
Potential Causes of a Hot Knee:
- Arthritis: Different types of arthritis, such as osteoarthritis and rheumatoid arthritis, can cause inflammation and warmth in the knee joint. [Source: Verywellhealth, Mayo Clinic, MedicineNet, Healthline]
- Infection: A bacterial, fungal, or viral infection in the knee joint (septic arthritis) is a serious concern and requires immediate medical attention. A hot, red, and swollen knee is a key indicator. [Source: NHS, Mayo Clinic, Relatyv]
- Bursitis: Inflammation of the bursae (fluid-filled sacs that cushion the knee joint) can lead to a warm, tender, and painful knee. [Source: Mayo Clinic, Healthline]
- Injury: Trauma to the knee, such as a sprain or fracture, can cause inflammation and warmth as the body repairs the damaged tissues. [Source: MedicineNet]
- Post-Surgery: Following knee replacement surgery, warmth in the knee is common due to increased blood flow during the healing process. This is usually temporary. [Source: Frisch Ortho]
When to Seek Medical Attention:
You should seek immediate medical attention if your hot knee is accompanied by:
- Severe pain
- Swelling
- Redness
- Fever
- Inability to bear weight on your leg
It is crucial to consult a doctor for accurate diagnosis and treatment. They will assess your symptoms, perform a physical examination, and may order imaging tests (like X-rays or MRI) or blood tests to determine the underlying cause of your hot knee. [Source: Verywellhealth]
Remember, this information is for general knowledge and does not constitute medical advice. Always consult a healthcare professional for any health concerns.
