🦴 Men's Health

Rheumatoid Arthritis in Nigeria

Understanding and managing inflammatory joint disease in Nigeria

Rheumatoid arthritis (RA) is a chronic autoimmune disease that causes painful inflammation of joints — primarily the small joints of the hands and feet — leading to progressive joint destruction, deformity, and disability if untreated. It affects approximately 0.5–1% of the global population and is 2–3 times more common in women. In Nigeria, RA is frequently diagnosed late — often after years of seeing multiple providers, being misdiagnosed as joint pain, typhoid, or 'body aches', and receiving ineffective traditional or symptomatic treatments. Early treatment with disease-modifying drugs (DMARDs) prevents joint destruction and preserves function.

Signs and Symptoms

✓ Morning stiffness lasting more than 1 hour (cardinal symptom — distinguishes RA from osteoarthritis)

✓ Symmetrical joint swelling: same joints on both sides (e.g., both wrists, both finger joints)

✓ Tender, warm, swollen small joints: metacarpophalangeal (MCP) and proximal interphalangeal (PIP) joints of hands, wrists, feet

✓ Grip weakness and difficulty with fine tasks (buttoning clothes, opening jars)

✓ Fatigue — often severe and underappreciated

✓ Low-grade fever and weight loss during active disease

✓ Rheumatoid nodules: firm lumps under the skin near elbows (seropositive RA)

✓ Extra-articular features: dry eyes (Sjogren's), anaemia, lung nodules, vasculitis (less common)

Risk Factors

Female sex: 2–3x more common in women
Age 30–60 (peak onset — but can affect any age)
Family history of RA
Smoking — significantly increases risk and worsens severity
Obesity
Periodontal disease — Porphyromonas gingivalis in gum disease may trigger RA
Hormonal factors — onset or flares often related to hormonal changes (postpartum, menopause)

When to Seek Help

Symmetrical joint swelling lasting more than 6 weeksThis is the key diagnostic window — early rheumatology referral and DMARD treatment within 3 months of symptom onset significantly improves long-term outcomes

Morning stiffness > 1 hourProlonged morning stiffness is the hallmark of inflammatory arthritis — distinguish from the brief stiffness of osteoarthritis

Wrist swelling or grip weakness developing over weeksThe wrist is the most commonly affected joint in early RA — don't attribute it to strain

Joint symptoms + persistent fatigue + anaemiaThe systemic nature of RA — get rheumatoid factor and anti-CCP tested

Known RA with new eye redness or drynessScleritis or Sjogren's syndrome — eye complications of RA need ophthalmology review

Tests & Diagnosis

🧪 Rheumatoid factor (RF)

Positive in 70–80% of RA cases — but also positive in other conditions. Not specific alone

🧪 Anti-CCP antibody (ACPA)

More specific than RF (95% specificity) — highly predictive of erosive, progressive disease. A key diagnostic test

🧪 ESR and CRP

Elevated in active inflammation — used to monitor disease activity and treatment response

🧪 Full blood count

Normocytic anaemia of chronic inflammation; platelets often elevated in active RA

🧪 X-rays of hands and feet

At diagnosis — periarticular osteopoenia and joint space narrowing in early RA. Erosions in established disease

🧪 Ultrasound of joints

More sensitive than X-ray for early synovitis and erosions — available at some Nigerian rheumatology centres

🧪 Liver and kidney function

Before starting DMARDs — methotrexate is hepatotoxic; NSAIDs affect kidneys

Treatment Options

Methotrexate — first-line DMARD

7.5–25mg once weekly (oral or SC injection). Most effective and widely available DMARD. Requires folic acid 5mg weekly (not same day as methotrexate). Monitor LFTs and FBC every 4–6 weeks initially. Avoid in liver disease, heavy alcohol use, or pregnancy

Hydroxychloroquine

Used in combination or for milder RA. Well-tolerated, requires annual eye check

Sulfasalazine

Often used in combination with methotrexate — effective and available in Nigeria

Prednisolone (bridging therapy)

Short courses during flares while waiting for DMARDs to take effect. Avoid long-term use due to serious side effects

Biologic agents (TNF inhibitors)

Etanercept, adalimumab, infliximab — highly effective for refractory RA. Expensive and limited availability in Nigeria. Requires TB screening before starting (reactivates latent TB)

Physiotherapy

Essential for maintaining range of motion and muscle strength — often neglected but critical for function

Pain management

NSAIDs (ibuprofen, diclofenac) for pain and stiffness. COX-2 inhibitors if GI intolerance. Avoid long-term opioids

Frequently Asked Questions

Is rheumatoid arthritis the same as osteoarthritis?

No. Osteoarthritis (OA) is wear-and-tear cartilage degeneration — common in elderly, affects weight-bearing joints, stiffness lasts < 30 minutes. RA is autoimmune — affects small joints symmetrically, stiffness lasts > 1 hour, occurs in younger people, and causes systemic symptoms. The treatment approaches are completely different.

Can I still work with rheumatoid arthritis?

With early diagnosis and effective DMARD treatment, most people with RA maintain employment. Occupational therapy adaptations, ergonomic equipment, and flexible working arrangements can help. Delayed or inadequate treatment leads to the joint destruction and disability that forces people out of work.

Is methotrexate a chemotherapy drug?

Yes — methotrexate is used in cancer chemotherapy at much higher doses. At the low weekly doses used in RA (typically 10–20mg/week vs 1000mg+ in cancer), it acts as an anti-inflammatory immunosuppressant. The side effect profile at these doses is manageable with monitoring.

Where can I get specialist treatment for RA in Nigeria?

Rheumatology clinics are available at UCH Ibadan, LUTH Lagos, UNTH Enugu, Aminu Kano Teaching Hospital, National Hospital Abuja, and some private practices. Most DMARDs are available but biologics remain expensive and largely out of reach without donor support.