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What is osteoarthritis?

Osteoarthritis (OA) is the most common chronic joint condition. OA is also called wear-and-tear arthritis, degenerative arthritis, and degenerative joint disease.

A joint is where two bones come together. Cartilage is the protective tissue that covers the ends of the bones. With OA, this cartilage breaks down, causing the bones within the joint to rub together. This can cause pain, stiffness, and other symptoms.

OA can occur in any joint. However, the most commonly affected areas of the body include the:

  • hands

  • fingers

  • shoulder

  • spine, typically at the neck or lower back

  • hips

  • knees

OA occurs most often in older people, although it can occur in adults of any age.

OA is a leading cause of disability. The Centers for Disease Control and Prevention (CDC)Trusted Source says that it affects more than 32.5 million adults in the United States. Here’s everything you need to know about OA

 

Osteoarthritis symptoms

The most common symptoms of OA include:

  • joint pain

  • stiffness in the joint

  • loss of flexibility and reduced range of motion

  • tenderness or discomfort when pressing on the affected areas with your fingers

  • inflammation

  • crepitus, or grating, crackling, clicking, or popping sounds when you move your joints

  • bone spurs, or extra lumps of bone, which are typically painless

As OA becomes more advanced, the pain associated with it may become more intense. Over time, swelling in the joint and surrounding area may also occur. Learn how to recognize the early symptoms of OA, which can help you to better manage the condition.

Osteoarthritis causes

OA is caused by joint damage. This damage can have a cumulative effect over time, which is why age is one of the main causes of the joint damage leading to OA. The older you are, the more repetitive stress you’ve had on your joints.

Other causes of joint damage include:

  • past injury, such as torn cartilage, dislocated joints, or ligament injuries

  • joint malformation

  • obesity

  • poor posture

Certain risk factors increase your chances of developing OA. They include:

  • having family with the condition, particularly parents or siblings

  • gender, with women having higher rates of OA than men

  • being at least 50 years old, according to the Arthritis Foundation

  • having undergone menopause

  • having an occupation that involves kneeling, climbing, heavy lifting, or similar actions

  • a history of injury

  • being overweight or having obesity

  • poor posture

  • having another medical condition that affects your joint health, such as diabetes or a different type of arthritis

Having OA in one part of your body also increases your risk of developing OA in other parts of your body. Learn more about possible causes of OA.

Osteoarthritis treatment

OA treatment is centered upon symptom management. The type of treatment that will help you the most will largely depend on the severity of your symptoms and their location.

Often, over-the-counter (OTC) medications, lifestyle changes, and home remedies will be enough to provide you with relief from pain, stiffness, and swelling.

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