Arthritis of the Hip, Knee and Shoulder: Symptoms, Causes and Treatment Options
Joint pain often shows up in everyday moments. Getting out of a chair feels stiffer than it used to. Stairs become uncomfortable. Reaching overhead starts to hurt. Sleep may even be interrupted because one position puts too much pressure on a painful shoulder.
Arthritis of the hip, knee, and shoulder can cause these problems, but it doesn't affect every joint or every person the same way. Osteoarthritis is a common cause, although rheumatoid arthritis and other conditions can produce similar symptoms.
The right treatment starts with understanding which joint is involved, what is causing the pain, and how much the condition is affecting your movement and daily life. For adults throughout Los Angeles who want to stay active and independent, that distinction matters.
What You'll Learn From This Article
How osteoarthritis changes a joint over time
How hip, knee, and shoulder arthritis symptoms can differ
What separates osteoarthritis from rheumatoid arthritis
How an orthopedic evaluation may identify the source of joint pain
Which nonsurgical treatment options may help
When joint replacement surgery may become part of the discussion
When persistent joint symptoms deserve specialist evaluation
What Happens to a Joint When Arthritis Develops?
A healthy joint allows bones to move smoothly against one another. Articular cartilage covers the ends of the bones, while synovial fluid lubricates the joint and reduces friction during movement.
Osteoarthritis is sometimes described as simple "wear and tear," but that explanation does not capture the full process. Research shows that osteoarthritis can involve changes in cartilage, bone, the synovium, ligaments, muscles, and other tissues surrounding the affected joint.
As cartilage changes, the joint may become less effective at distributing force. Bone beneath the cartilage can also change, and osteophytes, often called bone spurs, may develop. These changes can contribute to joint pain, inflammation, stiffness, and reduced range of motion.
A published review describes osteoarthritis as a whole-joint condition, not just cartilage, and outlines common risk factors, examination findings, and treatment options for hip and knee disease.
Osteoarthritis vs. Rheumatoid Arthritis
Osteoarthritis and rheumatoid arthritis can both cause painful, stiff joints, but they develop differently.
Osteoarthritis involves structural changes within a joint and often develops gradually. Age, genetics, previous significant joint injuries, body weight, and joint structure can all contribute.
Rheumatoid arthritis is an autoimmune inflammatory condition. The immune system contributes to ongoing inflammation that can affect multiple joints and, in some cases, other parts of the body.
Because these conditions require different approaches to care, persistent joint pain should not automatically be assumed to be osteoarthritis.
The same disease process can also feel very different depending on where it develops, so it helps to look at the hip, knee, and shoulder separately.
Hip Arthritis: Why Pain May Be Felt Beyond the Hip
The hip joint connects the rounded head of the thigh bone to a socket in the pelvis. Osteoarthritis can affect the cartilage covering these surfaces and gradually make movement less comfortable.
Hip arthritis does not always cause pain directly over the outside of the hip. Some people feel symptoms deeper in the groin or upper thigh, which can make the source of the problem less obvious.
Common Symptoms of Hip Osteoarthritis
Hip osteoarthritis may cause:
Deep groin or hip pain
Stiffness after sitting or resting
Reduced hip rotation
Difficulty putting on shoes or socks
Discomfort getting into or out of a vehicle
Pain with prolonged standing or walking
Reduced tolerance for exercise or recreational activity
During a physical examination, an orthopedic clinician may check how far the hip moves in several directions and whether certain movements reproduce the pain. Limited or painful internal rotation can be one clue, but no single exam finding confirms the diagnosis.
What Can Contribute to Hip Arthritis?
Hip osteoarthritis usually develops through a combination of factors rather than one isolated cause.
Age, genetics, previous joint injuries, body weight, structural differences within the hip, and other medical conditions can affect risk. Inflammatory conditions may also cause hip pain and require a different treatment plan.
When hip pain keeps returning or begins interfering with normal movement, an evaluation can help distinguish arthritis from other possible causes.
Knee arthritis involves many of the same tissues, but the symptoms often show up most clearly during weight-bearing activities.
Knee Arthritis: Pain, Stiffness, and Changes in Mobility
The knee handles considerable force when you walk, climb stairs, stand, squat, or exercise. Osteoarthritis can gradually change the cartilage and other structures within the joint, making these movements harder or less comfortable.
A 2025 review of knee osteoarthritis describes pain, stiffness, joint effusion, reduced motion, and difficulty with daily activities as common features. It also discusses conservative care, injections, and surgery as possible parts of treatment depending on severity.
Common Knee Osteoarthritis Symptoms
Symptoms may include:
Pain while walking
Difficulty going up or down stairs
Stiffness after sitting
Swelling around the knee
Reduced ability to fully bend or straighten the joint
Discomfort when kneeling or squatting
Lower tolerance for prolonged activity
Knee osteoarthritis becomes more common with age, but younger adults can develop it too, particularly after a significant knee injury.
Symptoms can also fluctuate. Some days may feel easier than others, and the amount of discomfort a person experiences does not always match the severity of changes visible on an X-ray.
Unlike the hip and knee, the shoulder does not support body weight, but arthritis there can still affect much of your daily routine.
Shoulder Arthritis: When Reaching and Lifting Become Difficult
The main shoulder joint is the glenohumeral joint, where the upper arm bone meets the shoulder blade. It allows a large range of motion, so stiffness in this joint can be especially noticeable.
Glenohumeral osteoarthritis involves progressive loss of articular cartilage along with changes in the surrounding bone. These changes may contribute to pain, stiffness, and reduced function.
Common Signs of Shoulder Arthritis
Possible symptoms include:
Deep pain within the shoulder
Increasing stiffness
Difficulty reaching overhead
Trouble reaching behind the back
Pain while lifting or carrying
Reduced range of motion
Pain that becomes more noticeable at night
For someone who works with their hands, exercises regularly, plays sports, cares for family members, or relies on full arm movement at work, even moderate shoulder stiffness can become disruptive.
Why an Accurate Shoulder Diagnosis Matters
Shoulder pain has many possible causes. Rotator cuff problems, bursitis, tendon conditions, arthritis, and neck-related issues can produce overlapping symptoms.
That is why the examination matters. A clinician may assess your shoulder motion, strength, tenderness, and the movements that reproduce your symptoms.
A review of glenohumeral osteoarthritis covers diagnosis, conservative care, and surgical options, emphasizing that treatment choices depend on factors such as age, anatomy, activity demands, and the condition of surrounding structures.
Foundation Hand Surgery Institute focuses on the hand and upper extremity, with care built around each patient's function, goals, and daily demands. For shoulder and other upper extremity concerns, an accurate diagnosis helps determine the next step.
Once the source of the symptoms is clearer, treatment can focus on improving function without moving to more invasive care sooner than necessary.
How Is Arthritis of the Hip, Knee and Shoulder Diagnosed
Diagnosing arthritis usually involves more than looking at an X-ray. An orthopedic evaluation considers your symptoms, medical history, physical examination, and imaging when needed.
Medical History and Physical Examination
Your clinician may ask:
Where is the pain located?
When did it begin?
Which movements make it worse?
Does stiffness develop after rest?
Has the joint been injured before?
Does pain affect sleep, work, exercise, or daily tasks?
Which treatments have already been tried?
The physical examination may assess range of motion, strength, tenderness, joint stability, and specific movements that reproduce symptoms.
Each joint requires a different examination. Hip rotation, knee stability, and shoulder motion provide different information about what may be causing the problem.
When X-rays May Help
X-rays can show structural changes associated with osteoarthritis, including joint space narrowing and osteophytes.
They can also help an orthopedic surgeon understand how advanced the structural changes are and whether another condition should be considered.
Don't interpret imaging in isolation. Someone can have noticeable arthritis on an X-ray with relatively manageable symptoms, while another person may have substantial pain with less dramatic imaging findings.
That is why treatment decisions should consider what you feel, how you move, and how the affected joint is changing your daily function.
After diagnosis, many patients can begin with conservative treatment rather than surgery.
Nonsurgical Treatment Options for Arthritis
Treatment should match the joint involved, symptom severity, your overall health, and the activities you want to maintain.
Treatment option | What it may help with | What to keep in mind |
Physical therapy and exercise | Strength, flexibility, range of motion, daily function | Exercises should match the affected joint |
Activity modification | Movements that repeatedly aggravate symptoms | The goal is often adaptation, not complete inactivity |
Weight management when appropriate | Mechanical stress on weight-bearing joints | Most relevant to hip and knee arthritis |
Anti-inflammatory medication | Pain and inflammation | Medical history and medication risks matter |
Joint injections | Temporary symptom control in selected patients | Benefits vary by joint and injection type |
Surgery | Advanced pain and major functional limitation | Usually considered after individual evaluation |
Physical Therapy and Exercise
Physical therapy may help maintain movement, strengthen muscles that support the joint, and make everyday activities more manageable.
Exercise is an important part of hip and knee osteoarthritis management for many patients. Shoulder therapy may also help preserve movement and function when appropriate.
The goal is not simply to push through pain. A useful program should account for the joint involved, your current ability, and your activity goals.
Lifestyle and Activity Changes
Arthritis treatment does not automatically mean giving up exercise, hobbies, or work activities.
Sometimes small adjustments make a meaningful difference. This may include changing repetitive movements, adjusting exercise intensity, alternating demanding activities with easier ones, or changing how you perform certain tasks.
For people with hip or knee osteoarthritis, weight management may also reduce mechanical stress on the joint when it is medically appropriate.
Medications
Topical or oral nonsteroidal anti-inflammatory drugs may help some people manage pain and inflammation.
These medications are not appropriate for everyone. Kidney disease, gastrointestinal problems, cardiovascular conditions, other medications, and additional health factors can affect whether they are suitable.
Discuss medication choices with a qualified medical professional.
Joint Injections
Corticosteroid injections may provide temporary symptom relief for selected patients.
Other injections, including hyaluronic acid and platelet-rich plasma, may be considered in certain situations, particularly for knee arthritis. Evidence and recommendations differ by treatment type, joint, and individual patient.
An injection should not be presented as a way to regrow lost cartilage or cure osteoarthritis. Its role is usually symptom management, not reversing the underlying condition.
If conservative care no longer provides enough relief or function, surgery may become worth discussing.
When Is Joint Replacement Surgery Considered?
Arthritis does not automatically lead to joint replacement.
Surgery is generally discussed when pain and functional limitations become significant, structural damage is advanced, and appropriate nonsurgical treatment has not provided enough benefit.
The decision should consider symptoms, imaging, medical history, overall health, activity demands, and personal goals.
Hip Replacement
During total hip replacement, surgeons replace damaged portions of the hip joint with artificial components.
A surgeon may consider this option when hip arthritis causes substantial pain and loss of function despite appropriate conservative care.
Knee Replacement
Knee replacement may involve part of the knee or the entire joint, depending on where arthritis is present and how extensive the damage has become.
Many people with knee arthritis do not need surgery, particularly when symptoms remain manageable with physical therapy, activity changes, medication, or other conservative treatment.
Shoulder Replacement
Advanced shoulder arthritis may sometimes be treated with total shoulder arthroplasty, reverse shoulder arthroplasty, or another procedure.
The appropriate operation depends on several factors, including joint anatomy, rotator cuff function, age, activity level, and the pattern of joint damage.
An X-ray showing arthritis is not enough by itself to determine that replacement surgery is needed. The decision should reflect how much the condition is affecting your life and how you have responded to other treatments.
Knowing when symptoms deserve specialist attention can help you move from guessing about the cause to understanding your options.
When Should You See an Orthopedic Specialist for Joint Pain?
Not every temporary ache requires specialist care. Persistent symptoms, however, deserve closer attention.
Consider an orthopedic evaluation if:
Pain continues for several weeks or repeatedly returns
Stiffness is limiting normal movement
Joint pain interferes with work or exercise
Walking or stairs are becoming difficult
Shoulder pain makes reaching, lifting, or dressing harder
Pain frequently interrupts sleep
Symptoms started after a significant injury
Conservative treatment has not helped enough
You want a second opinion before considering surgery
Many adults in Los Angeles depend on reliable movement for work, family responsibilities, hobbies, sports, and everyday independence. A clear diagnosis can reduce uncertainty and help you understand which treatment options actually fit your situation.
remity concerns, Foundation Hand Surgery Institute takes a patient-focused approach that considers your symptoms, lifestyle, functional goals, and preference for conservative or surgical care.
Common questions about arthritis often come down to the same issue: what do the symptoms actually mean for you, and what should happen next?
Frequently Asked Questions About Arthritis of the Hip, Knee and Shoulder
1. What are the first signs of arthritis in the hip, knee, or shoulder?
Early symptoms can include pain during certain activities, stiffness after rest, and a gradual reduction in range of motion.
Hip arthritis may cause groin discomfort or make it hard to rotate the hip. Knee arthritis may become noticeable during walking or on stairs. Shoulder arthritis may make reaching overhead or behind your back uncomfortable.
These symptoms can also occur with other conditions, so they do not confirm arthritis on their own.
2. Can arthritis affect the hip, knee, and shoulder at the same time?
Yes. Osteoarthritis can affect more than one joint, and rheumatoid arthritis may involve several joints as part of a broader inflammatory condition.
Pain in multiple joints does not necessarily mean that every symptom has the same cause. An evaluation may be needed to separate arthritis from tendon, nerve, muscle, or other orthopedic problems.
3. Does arthritis always get worse with age?
No. Osteoarthritis becomes more common with age, but progression varies considerably.
Genetics, previous injuries, body weight, joint structure, physical demands, and other health factors can influence how the condition develops. Symptoms can also change over time and do not always progress at the same rate as X-ray findings.
4. Can physical therapy help arthritis of the hip, knee and shoulder?
Physical therapy can help some people improve strength, maintain range of motion, and perform daily activities more comfortably.
The program should match the affected joint and the person's condition. Hip exercises, knee strengthening, and shoulder mobility work serve different purposes and should not be treated as interchangeable.
5. Does arthritis of the hip, knee, and shoulder always require joint replacement?
No. Many people manage arthritis without replacement surgery.
Physical therapy, activity changes, medication, exercise, and selected injections may help control symptoms for some patients. Surgery is generally considered when arthritis causes substantial pain or loss of function despite appropriate nonsurgical care.
Understanding the diagnosis and how the condition affects your daily life is more useful than assuming surgery is inevitable.
Finding the Right Arthritis Treatment Plan in Los Angeles
Arthritis of the hip, knee, and shoulder can cause similar problems, including pain, stiffness, inflammation, and loss of motion, but each joint affects daily life differently.
A useful treatment plan starts with an accurate diagnosis. From there, care may include exercise, physical therapy, activity changes, medication, injections, or surgery when appropriate.
No single protocol suits everyone. Your symptoms, physical examination, imaging, work demands, medical history, activity level, and personal goals should all shape the decision.
Foundation Hand Surgery Institute provides focused orthopedic care for the hand and upper extremity, with board-certified orthopedic surgeons serving the San Fernando Valley, West Valley, West LA, and surrounding Los Angeles communities.
If shoulder or other upper extremity joint pain is interfering with work, sleep, exercise, or everyday activities, request an appointment with Foundation Hand Surgery Institute to discuss your symptoms, treatment options, or a second opinion. A focused evaluation can help you understand the problem and choose the next step that fits your needs.
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