Why do my knees and legs ache at night?
Common causes of knee and leg pain at night include:
- Arthritis: Arthritis is a condition that causes inflammation of the joints. This can lead to pain, stiffness, and swelling. Osteoarthritis is the most common type of arthritis, and it is caused by wear and tear on the joints. Rheumatoid arthritis is another type of arthritis that is caused by the body's immune system attacking the joints.
- Bursitis: Bursitis is a condition that causes inflammation of the bursa, which are fluid-filled sacs that cushion the joints. Bursitis can be caused by overuse, injury, or arthritis.
- Tendonitis: Tendonitis is a condition that causes inflammation of the tendons, which are the cords that connect muscles to bones. Tendonitis can be caused by overuse, injury, or arthritis.
- Muscle strains: Muscle strains are injuries to the muscles. They can be caused by overuse, injury, or fatigue.
- Shin splints: Shin splints are a condition that causes pain along the shinbone. They are commonly caused by overuse, such as from running or walking too much.
- Restless legs syndrome: Restless legs syndrome (RLS) is a condition that causes an uncomfortable urge to move the legs, often accompanied by pain and discomfort. RLS is often worse at night and can interfere with sleep.
Other possible causes of knee and leg pain at night include:
- Peripheral artery disease: Peripheral artery disease (PAD) is a condition that causes narrowing of the arteries in the legs, which can lead to pain, numbness, and weakness.
- Diabetes: Diabetes can cause nerve damage, which can lead to pain, numbness, and weakness in the legs.
- Thyroid problems: Thyroid problems can cause a variety of symptoms, including muscle weakness and fatigue, which can lead to knee and leg pain.
- Lupus: Lupus is a chronic autoimmune disease that can affect many different parts of the body, including the joints and muscles. Lupus can cause pain, swelling, and stiffness in the knees and legs.
- Cancer: Cancer can cause pain in the knees and legs, especially if it has spread to the bones or soft tissues.
If you are experiencing knee and leg pain at night, it is important to see a doctor to determine the cause and receive appropriate treatment.