What Is Joint Pain?
Joint pain, or arthralgia, as it’s medically known, refers to aching or soreness in any part of a joint in the body. A joint is where two bones meet, such as your knees or shoulders. These connection points work like hinges and pivots, allowing your body to move. They’re cushioned by cartilage (a slippery tissue that prevents bone-on-bone friction) and stabilized by ligaments and tendons. When any part of that system becomes irritated, damaged, or inflamed, pain can develop.
Joint pain doesn’t always originate in the joint itself. Because muscles help control how joints move, chronic muscle tightness or spasms can pull the bones of a joint together and cause pain that feels like it’s coming from the joint.
Joint pain might feel like a dull ache, stiffness, or a sharp twinge with certain movements, and can affect one or more joints at a time. It’s often a symptom of an underlying issue, not a condition on its own. It may come and go or be constant, and commonly affects the knees, hips, hands, and shoulders.
Because the joints are involved in nearly every movement, even mild pain can interfere with activities like walking, reaching, or gripping objects.
What Causes Joint Pain?
Causes of joint pain generally fall into several categories:
Mechanical wear and tear: Osteoarthritis (OA), a common cause of joint pain, develops when the protective cartilage that cushions the joint breaks down and your bones rub together when you use that joint, leading to pain, swelling, stiffness, and reduced movement. Still, research shows that low-grade inflammation in the body, which can be due to poorly-controlled blood sugar, nutrient gaps, and chronic stress, is also a driver of this process (Terkawi et al., 2022).
Autoimmune and inflammatory conditions: In some cases, the immune system mistakenly attacks the joints, leading to ongoing inflammation and pain. This includes conditions like rheumatoid arthritis (RA) and psoriatic arthritis.
Infections: Joint pain can sometimes develop as a result of an infection elsewhere in the body (Rodrigo et al., 2022). Tick-borne illnesses like Lyme disease are a well-known cause, and so are certain viral infections, including COVID-19 (Ciaffi et al., 2023).
Injuries and overuse: Fractures, sprains, and strains, or repetitive movements, can affect the joint, leading to pain and inflammation in the tendons surrounding the joint (tendinitis) or bursitis, which is inflammation in the fluid-filled sacs that cushion the joints. Sometimes the pain is caused by tight muscles or muscle spasms around the joint.
Metabolic and systemic conditions: Low-grade inflammation can slowly wear down the cartilage that protects your joints, leading to pain. Conditions like diabetes, gout, and pseudogout fall into this category.
Other factors: Fibromyalgia (widespread musculoskeletal pain) can also be felt in the joints. Joint pain can be a side effect of certain medications like the cholesterol-lowering drug, simvastatin (Zocor), and some antibiotics. Certain malignancies, like osteosarcoma, can cause bone or joint pain.
In some cases, the cause of joint pain is clear, like an injury. In others, joint pain develops gradually without an obvious reason.
Who Is At Risk?
Age is the most common driver, especially in conditions like OA, as joints naturally change over time, but it’s far from the only risk factor. You may be at a higher risk for persistent joint pain if you have:
A history of joint injuries: Past injuries can raise the risk of arthritis and change how a joint moves, leading to added stress on nearby joints.
A physically demanding job or repetitive movements: Activities that involve frequent lifting, kneeling, or overhead motions can put chronic stress on certain joints.
Excess weight: Extra weight increases the force exerted on weight-bearing joints, like the knees and hips, which can accelerate the breakdown of protective cartilage.
Poor metabolic health: Poor sleep, persistent stress, insulin resistance, and nutrient deficiencies can keep the body in a state of low-grade inflammation that undermines the joint’s ability to repair itself.
A family history of joint conditions: Some forms of arthritis and autoimmune diseases run in families.
Not moving enough can weaken the muscles that support your joints, making them more vulnerable to pain and stiffness.
What Are The Symptoms?
Beyond the aching, stiffness, and sharp twinges described above, the affected joint may appear swollen or feel warm to the touch, though swelling isn’t always present. You might notice a reduced range of motion (how far you can move a joint), such as being unable to lift your shoulder too high. Some people also experience “crepitus” (a grating or popping sensation when the joint moves) or a feeling of instability, as if the joint might give way.
In inflammatory conditions like RA, symptoms often feel worse in the morning and improve as the day goes on. Fatigue is also common, particularly when an autoimmune or systemic condition is driving the pain.
Because these symptoms can fluctuate with activity levels, weather changes, or metabolic stress, keeping track of when and where the discomfort occurs is often the most helpful step in identifying the pattern behind your pain.
If you develop sudden, severe joint swelling along with fever — signs of an infection — seek medical attention promptly.
How Is Joint Pain Diagnosed?
A thorough medical history and a physical exam, where a healthcare provider checks for swelling, range of motion, and joint stability, are the first steps. From there, diagnostic testing can give more information. These may include:
Imaging, such as X-rays, magnetic resonance imaging (MRI), or ultrasound
Blood tests to help identify underlying issues like autoimmune conditions, infection, or other contributors to inflammation.
A small sample of joint fluid, called a joint aspiration, to check for infection, gout, or inflammatory markers.
Changes in the joint can occur before they appear on imaging, which is why your symptoms and history, including personal and family, are incredibly important to discuss with your healthcare provider.
How Is Joint Pain Treated With Regenerative Therapies?
Non-steroidal anti-inflammatory drugs (NSAIDs), physical therapy, and lifestyle changes such as weight management are conventional treatments often used to manage joint pain. Injections or surgery may be recommended when symptoms are more advanced.
Alongside conventional care, integrative and regenerative therapies may also be part of a joint pain treatment plan. These therapies can help stimulate the body’s natural healing processes to lower chronic inflammation and encourage the long-term repair of damaged tissues.
Acupuncture
Acupuncture uses thin needles inserted at specific points on the body to stimulate the nervous system, reduce inflammatory signaling, and increase blood flow to affected areas.
A randomized controlled trial (RCT) — one of the more rigorous study designs available — compared several acupuncture techniques against both a placebo version (an inactive treatment) and the common anti-inflammatory drug Celebrex, in patients with knee osteoarthritis. All acupuncture techniques outperformed the placebo, and electroacupuncture, which adds a mild electrical current to the needles, outperformed Celebrex on both pain and physical function scores (Sun et al., 2025). The study focused specifically on knee osteoarthritis, so more research is needed across other joint conditions.
Low-Level Laser Therapy
Low-level laser therapy (LLLT) uses light energy applied to the skin to help reduce pain and inflammation and support tissue healing. It’s a noninvasive treatment that doesn’t generate heat.
In an analysis of 22 RCTs involving people with knee osteoarthritis, LLLT reduced pain and improved function compared to a placebo, with benefits lasting up to 12 weeks after treatment (Stausholm et al., 2019).
These findings are specific to knee osteoarthritis, and results can vary depending on the dose and how the treatment is applied. More research is needed to confirm the benefits in other causes of joint pain.
Platelet-Rich Plasma Therapy
With platelet-rich plasma (PRP) therapy, a sample of the patient’s blood is collected and processed to concentrate platelets, then injected into the joint to help with tissue repair.
PRP provided pain relief and functional improvement in people with knee osteoarthritis compared to placebo, with benefits lasting several months in some cases, according to an analysis of 18 RCTs (Bensa et al., 2025). But results may vary depending on preparation and platelet concentration.
For people with persistent rheumatoid arthritis pain despite standard medication, PRP may provide longer-lasting symptom relief compared to corticosteroid injections (Saif et al., 2021). Though this particular trial was small, and participants knew which treatment they were receiving (known as an open-label trial), which could influence how symptoms are reported.
But for those with gout or pseudogout, case reports indicate that PRP may trigger an acute inflammatory flare (Jacobs et al., 2023).
Shockwave Therapy
This noninvasive treatment, also known as extracorporeal shockwave therapy (ESWT), uses sound waves applied to the affected area to help stimulate circulation, reduce inflammation, and promote tissue repair.
A review of RCTs found that shockwave therapy significantly outperformed placebo, corticosteroid injections, hyaluronic acid, and medication in both pain reduction and functional improvement in multiple types of osteoarthritis (Chen et al., 2020). Smaller studies also suggest ESWT may help with other types of joint pain, including lower back joint pain and rheumatoid arthritis (Nedelka et al., 2025; Zhang et al., 2024). Still, the research varies in quality, and longer and larger studies are needed.
What Are Possible Complications?
Untreated joint pain can become a life-changing condition. Cartilage often continues to break down, mobility decreases, and surrounding muscles can weaken from inactivity.
Persistent pain may create a “pain cycle,” where the fear of movement leads to stiffness, which can, in turn, cause more pain. Chronic inflammation can lead to joint deformity, eventual loss of independence, and a decline in overall quality of life.
Can Joint Pain Be Prevented?
Certain joint pain risk factors aren’t preventable, particularly when genetics or autoimmune conditions are involved. But certain habits, like maintaining a healthy weight, can help reduce stress on weight-bearing joints. Regular low-impact exercise, like walking, swimming, or cycling, can help keep the surrounding muscles strong and joints mobile. Stretching can also help keep the surrounding muscles flexible and reduce stress on the joints.
To reduce inflammation, manage your blood sugar by limiting processed foods and added sugars; get consistent, quality sleep; follow an anti-inflammatory diet; and support gut health with fiber-rich foods and fermented options like yogurt or kimchi. Protect your joints during physical activity by using proper form and avoiding overuse.
Takeaway
Joint pain is a symptom that the body’s inflammatory or structural balance needs attention. How well the body manages blood sugar, sleep, stress, and nutrition plays a bigger role in joint health than most people realize. Regenerative and integrative approaches alongside conventional treatment can help many people experiencing joint pain improve comfort and stay active.
