Aesthetic Clinic

Rheumatoid Arthritis: Symptoms, Causes, and Every Treatment Option Explained

4 July 2026

15 min read

Woman with visibly swollen finger joints showing symptoms of rheumatoid arthritis at home with information guide by Dr SNA Clinic London Wimpole Street

✅ Medically reviewed | Updated July 2026

Rheumatoid arthritis is not just joint pain. It is a long-term autoimmune condition that affects the whole body — and for many people in the UK, it is a condition they live with for decades, managing flares, adapting their lives, and navigating a treatment landscape that has changed significantly in recent years.

The good news is that early diagnosis and the right treatment can genuinely make a difference. Many people with rheumatoid arthritis go on to lead full, active lives — with periods between flares lasting months or even years. But that outcome depends on understanding the condition properly, acting early, and matching the right treatment to the right patient.

This guide covers everything you need to know: what rheumatoid arthritis is, how it differs from osteoarthritis, what the symptoms look like, how it is diagnosed, and what every treatment option involves — from NHS medication to private specialist care.

What Is Rheumatoid Arthritis?

Rheumatoid arthritis is a long-term condition that causes pain, swelling and stiffness in the joints. The condition usually affects the hands, feet and wrists.

But unlike osteoarthritis — which is caused by cartilage wearing away over time — rheumatoid arthritis is an autoimmune disease. Your immune system attacks the cells that line your joints by mistake, making the joints swollen, stiff and painful. Over time, this can damage the joints, cartilage and nearby bone.

This distinction is critical. Because rheumatoid arthritis is driven by an overactive immune system rather than mechanical wear, it responds to a completely different set of treatments than osteoarthritis. The two conditions are often confused — particularly in their early stages — which is one reason why diagnosis matters so much.

Rheumatoid arthritis affects around 400,000 people in the UK. Women are three times more likely to develop it than men. It can begin at any age, but most commonly develops between the ages of 40 and 60.

How Is Rheumatoid Arthritis Different From Osteoarthritis?

This is one of the most common questions patients ask — and it matters because the answer completely changes the treatment pathway.

	Rheumatoid Arthritis	Osteoarthritis
Cause	Autoimmune — immune system attacks joint lining	Mechanical — cartilage wears away over time
Joints affected	Often both sides simultaneously (hands, wrists, feet, knees)	Usually one side, or the more used joint
Onset	Can be rapid, often with systemic symptoms	Gradual, over years
Morning stiffness	Significant — often lasting more than 30 minutes	Mild — usually eases within 15 minutes
Age of onset	Any age, peak 40–60	Usually over 45–50
Systemic symptoms	Yes — fatigue, weight loss, fever	Rarely
Blood markers	Rheumatoid factor, anti-CCP antibodies often positive	Not present
Treatment	Disease-modifying drugs, biologics	Exercise, pain relief, Arthrosamid, surgery

If you have pain and stiffness in both hands or both wrists simultaneously, alongside significant fatigue and morning stiffness lasting more than 30 minutes — see a GP promptly. These features strongly suggest an inflammatory rather than mechanical cause, and early treatment makes a significant difference to outcomes in rheumatoid arthritis.

For a detailed explanation of how the knee joint is affected by both osteoarthritis and inflammatory conditions, visit the Dr SNA Clinic YouTube channel where Mr Abbas has published a clinical video series covering joint anatomy, inflammation, and how synovial tissue is involved in both conditions.

Symptoms of Rheumatoid Arthritis

There may be periods where symptoms become worse, known as flare-ups or flares. A flare can be difficult to predict, but with treatment it’s possible to decrease the number of flares and minimise or prevent long-term damage to the joints.

The main symptoms of rheumatoid arthritis include:

Joint symptoms:

Pain, swelling, and tenderness in the affected joints — most commonly the small joints of the hands, wrists, and feet
Stiffness that is significantly worse in the morning and after periods of rest
Warmth and redness over the affected joints
Reduced range of movement in the joint
Symmetrical pattern — both hands, both wrists, or both feet affected at the same time

Systemic symptoms:

Persistent fatigue — often described as bone-deep exhaustion rather than ordinary tiredness
Weight loss without trying
Mild fever or general feeling of being unwell
Low mood or depression, which is closely linked to chronic pain and fatigue

Less common features:

Firm lumps under the skin near affected joints (rheumatoid nodules)
Dry eyes or dry mouth (associated Sjögren’s syndrome)
Chest pain or breathlessness (inflammation of the lungs or heart lining — seek prompt medical advice if this occurs)

Some people with rheumatoid arthritis also experience problems in other parts of the body, or more general symptoms such as tiredness and weight loss. This is what makes rheumatoid arthritis a systemic condition — it is not confined to the joints.

If you have had joint pain and stiffness for more than six weeks, particularly with morning stiffness, symmetrical joint involvement, or significant fatigue — do not wait. Early diagnosis and treatment consistently produce better long-term outcomes than delayed diagnosis.

What Causes Rheumatoid Arthritis?

It’s not clear what triggers this problem with the immune system, although you’re at an increased risk if you are a woman, you have a family history of rheumatoid arthritis, or you smoke.

Beyond those established risk factors, researchers have identified several other contributors:

Genetics — having a close relative with rheumatoid arthritis increases your risk, though the condition is not directly inherited. Certain gene variants (particularly HLA-DRB1) are associated with increased susceptibility.

Hormones — the fact that women are three times more likely to develop rheumatoid arthritis than men suggests hormonal factors play a role. The condition sometimes improves during pregnancy and can flare after childbirth.

Smoking — one of the strongest modifiable risk factors. Smoking significantly increases both the risk of developing rheumatoid arthritis and the severity of the condition once it develops. Stopping smoking is one of the most impactful things a person with rheumatoid arthritis can do.

Infections — certain viral and bacterial infections appear to trigger rheumatoid arthritis in genetically susceptible people, though no single infection has been identified as the definitive cause.

Gut microbiome — emerging research suggests that the composition of gut bacteria may influence immune system activity and rheumatoid arthritis risk, though this remains an active area of investigation.

How Is Rheumatoid Arthritis Diagnosed?

Diagnosing rheumatoid arthritis quickly is important, because early treatment can prevent it getting worse and reduce the risk of joint damage.

Diagnosis typically involves a combination of:

Clinical assessment — a GP or rheumatologist reviews your symptoms, examines the affected joints, and assesses the pattern and duration of stiffness and pain.

Blood tests:

Rheumatoid factor (RF) — present in around 70-80% of people with rheumatoid arthritis, but also found in some people without it
Anti-CCP antibodies — more specific to rheumatoid arthritis and can be present years before symptoms develop
ESR and CRP — inflammatory markers that indicate the level of inflammation in the body
Full blood count — anaemia is common in rheumatoid arthritis

Imaging:

X-rays — may appear normal in early disease but show joint damage and erosions as the condition progresses
Ultrasound — useful for detecting early synovial inflammation and joint effusions
MRI — provides the most detailed view of soft tissue inflammation and early joint damage

A normal blood test does not rule out rheumatoid arthritis. Around 20-30% of people with the condition are seronegative — their rheumatoid factor is negative. If clinical features are strongly suggestive, referral to rheumatology should not be delayed on the basis of blood test results alone.

Treating Rheumatoid Arthritis — Every Option Explained

There’s no cure for rheumatoid arthritis. However, early diagnosis and appropriate treatment enables many people with the condition to have periods of months or even years between flares.

Treatment has two distinct goals: controlling inflammation to prevent joint damage, and managing symptoms to maintain quality of life. The most effective approach uses both simultaneously.

Disease-Modifying Anti-Rheumatic Drugs (DMARDs)

DMARDs are the cornerstone of rheumatoid arthritis treatment and should be started as early as possible after diagnosis. They work by suppressing the overactive immune response driving the inflammation — not just masking the pain.

The most commonly prescribed DMARD is methotrexate, which is effective, well-tolerated by most patients, and has decades of evidence behind it. It is usually taken once a week, alongside folic acid to reduce side effects.

Other DMARDs include hydroxychloroquine, sulfasalazine, and leflunomide. Combination DMARD therapy is often more effective than a single drug alone.

DMARDs take time to work — typically six to twelve weeks before full benefit is felt. They require regular blood monitoring to check for side effects.

Biological Therapies (Biologics)

For patients whose rheumatoid arthritis does not respond adequately to conventional DMARDs, biological therapies (biologics) offer a more targeted approach. These are injectable medications that block specific proteins involved in the inflammatory process.

The most commonly used biologics include:

TNF inhibitors — adalimumab (Humira), etanercept, infliximab — block tumour necrosis factor, a key driver of joint inflammation
IL-6 inhibitors — tocilizumab — block interleukin-6, another inflammatory signalling molecule
JAK inhibitors — baricitinib, tofacitinib — oral medications that block inflammatory signalling pathways inside cells
Rituximab — targets B cells, the immune cells involved in producing the antibodies that attack the joints

Biological therapies have transformed outcomes for many people with moderate to severe rheumatoid arthritis who were not responding to conventional treatment. They are available on the NHS but require prior failure of at least two conventional DMARDs.

Steroids

Short courses of corticosteroids — taken orally or injected directly into an inflamed joint — can provide rapid relief during flares. They are not suitable as long-term treatment because of their side effect profile, but as a bridge while DMARDs take effect or during acute flares, they are genuinely useful.

Steroid injections into an inflamed knee or other joint affected by rheumatoid arthritis can provide relief within two to seven days, lasting four to twelve weeks. Repeated use should be limited — both systemically and locally — because of risks including bone density loss, blood sugar elevation, and, with joint injections, potential cartilage damage over time.

Physiotherapy and Occupational Therapy

Supportive treatments, such as physiotherapy and occupational therapy, help keep you mobile and manage any problems you have with daily activities.

Physiotherapy focuses on maintaining joint mobility, strengthening the muscles around affected joints, and reducing pain through exercise and manual therapy. Physiotherapy is not optional in rheumatoid arthritis — it is part of the treatment plan, particularly for the knee, which is frequently affected.

Occupational therapy helps patients adapt their daily activities and environment to manage the functional impact of the condition — from joint protection techniques to assistive devices.

Pain Management

Pain relief in rheumatoid arthritis sits alongside disease-modifying treatment — it does not replace it. Paracetamol for mild pain, topical anti-inflammatory gels for localised joint inflammation, and oral NSAIDs (used cautiously) are all part of the pain management toolkit.

For patients on biologics or DMARDs, medication interactions need careful review before any new pain relief is started.

Surgery

Surgery is used to correct any joint problems that develop. In rheumatoid arthritis, surgery becomes relevant when joint damage is severe and conservative treatment can no longer maintain function. Options include synovectomy (removal of the inflamed joint lining), tendon repair, joint fusion, and joint replacement.

Knee replacement in patients with rheumatoid arthritis-related joint destruction can dramatically improve function and quality of life, though it is a major procedure with a recovery period of several months.

Rheumatoid Arthritis and the Knee — When Advanced Treatment May Help

The knee is one of the joints most commonly affected by rheumatoid arthritis. When the knee is involved, the inflamed synovial membrane produces excess fluid, causing swelling, pain, and stiffness — a picture that can look similar to knee osteoarthritis but requires different primary management.

If the knee arthritis associated with rheumatoid arthritis has been stabilised with disease-modifying treatment but the knee itself continues to cause significant pain and swelling, a consultation with a knee expert to discuss joint-specific treatment options is worth pursuing.

For patients with knee involvement and residual symptoms despite systemic rheumatoid arthritis management, our detailed guides offer useful context:

For patients whose knee pain is driven primarily by osteoarthritis rather than rheumatoid arthritis, the Arthrosamid injection is a non-biodegradable hydrogel treatment that integrates with the synovial tissue of the knee and may provide sustained pain relief for up to five years from a single procedure. It is specifically indicated for mild to moderate knee osteoarthritis — not for active inflammatory joint disease — and suitability is always confirmed at consultation before any treatment is agreed.

Lifestyle and Rheumatoid Arthritis — What Makes a Real Difference

Medical treatment alone is rarely the whole picture. The patients who manage rheumatoid arthritis most effectively tend to be those who combine medication with consistent lifestyle measures.

Stop smoking. This is the single most impactful lifestyle change for someone with rheumatoid arthritis. Smoking makes the condition harder to treat, reduces the effectiveness of biologics, and significantly increases the risk of cardiovascular complications.

Exercise regularly. Gentle, consistent movement — walking, swimming, cycling, tai chi — maintains joint mobility, strengthens the surrounding muscles, and reduces pain over time. The instinct to rest during a flare is understandable, but maintaining gentle movement is usually beneficial unless the joint is severely inflamed.

Manage weight. Excess weight increases the load on lower-limb joints and elevates systemic inflammation. Even modest weight loss improves pain scores and functional ability in patients with lower-limb joint involvement.

Protect your joints. Occupational therapy techniques — using larger joints for tasks, avoiding sustained grip, using assistive devices — reduce cumulative joint stress during daily activities.

Monitor your mental health. Some people with rheumatoid arthritis also experience problems in other parts of the body, or more general symptoms. Depression and anxiety are significantly more prevalent in people with rheumatoid arthritis than in the general population. This is not weakness — it is a recognised feature of living with chronic pain and fatigue. Addressing it is part of managing the condition.

Complications of Rheumatoid Arthritis

Having rheumatoid arthritis can lead to several other conditions that may cause additional symptoms and can sometimes be life threatening. Possible complications include carpal tunnel syndrome, inflammation of other areas of the body such as the lungs, heart and eyes, and an increased risk of heart attack and stroke.

Making sure rheumatoid arthritis is well controlled is not just about joints — it is about reducing the risk of serious systemic complications. Cardiovascular disease is the leading cause of premature death in people with rheumatoid arthritis, and well-controlled inflammation significantly reduces that risk.

Regular monitoring, medication reviews, and cardiovascular risk assessment should be part of ongoing rheumatoid arthritis management — not just a one-off at diagnosis.

When to See a Doctor Urgently

Seek same-day medical attention if:

A joint becomes severely hot, red, and swollen alongside a high temperature — possible septic arthritis, which is a medical emergency
You develop sudden chest pain or significant breathlessness — possible cardiac or pulmonary involvement
You lose significant grip strength suddenly or develop new neurological symptoms

See your GP promptly if:

Joint pain and stiffness has persisted for more than six weeks
You are experiencing symmetrical joint involvement with significant morning stiffness
You have unexplained fatigue, weight loss, or low-grade fever alongside joint symptoms

Your existing rheumatoid arthritis treatment does not seem to be controlling your symptoms

About Mr Syed Nadeem Abbas — Knee and Joint Expert at Dr SNA Clinic London

Dr SNA Clinic is based at 48 Wimpole Street, Marylebone, London W1G 8SF — in the Harley Street Medical Quarter. Every assessment and treatment at the clinic is carried out personally by Mr Syed Nadeem Abbas, MBBS, MRCSEd, MSc (Distinction).

Mr Abbas spent six years in NHS Trauma and Orthopaedics at hospitals including Cambridge and Oxford, giving him a surgical-level understanding of joint anatomy and the clinical judgement to assess complex joint presentations accurately. He holds postgraduate membership of the Royal College of Surgeons of Edinburgh (MRCSEd) and an MSc in Aesthetic Plastic Surgery with Distinction from Queen Mary University of London.

He holds formal certification in Arthrosamid injection therapy through the American Cellular Medical Association. The clinic is CQC regulated and holds a 4.9-star Google rating from verified patient reviews.

For plain-language clinical video content on joint conditions — including knee anatomy, inflammation, and how treatments work — visit the Dr SNA Clinic YouTube channel.