Can an intrauterine device (IUD), especially a levonorgestrel‑releasing hormonal IUD, cause symptoms that mimic rheumatoid arthritis?

Can IUDs Cause Rheumatoid Arthritis Symptoms?

No, IUDs do not cause rheumatoid arthritis or rheumatoid arthritis symptoms. There is no established causal relationship between intrauterine device use—whether copper or levonorgestrel-releasing—and the development of rheumatoid arthritis or RA-like joint symptoms.

Evidence Base

The available evidence does not support a connection between IUDs and rheumatoid arthritis:

• A large retrospective cohort study of 242,383 patients found no association between IUD use and musculoskeletal joint pain 1. This study specifically examined hip pain, orthopedic visits, and joint procedures, finding no increased risk in IUD users compared to those using subdermal contraceptive implants.

• One isolated case report from 2010 described pelvic joint pain (symphysiolysis-like symptoms) in a single patient using a levonorgestrel IUD 2. This represents an extremely rare occurrence of pelvic girdle pain—not rheumatoid arthritis—and involved pregnancy-related joint loosening mechanisms, not autoimmune inflammation.

• A systematic review examining contraceptive safety in women with established rheumatoid arthritis found no evidence that contraceptive methods worsen RA disease progression 3. While this review focused primarily on oral contraceptives, it specifically noted the need for research on IUDs but found no safety concerns.

What You're Actually Seeing

If a patient with an IUD presents with joint symptoms, consider these possibilities:

New-onset rheumatoid arthritis (coincidental timing):

• RA typically affects women of reproductive age (peak onset 30-50 years)
• The temporal association with IUD placement is coincidental, not causal
• Look for: symmetric small joint involvement, morning stiffness >30 minutes, positive RF/anti-CCP antibodies, elevated inflammatory markers

Hormonal side effects (not RA):

• Levonorgestrel IUDs can cause various side effects, but joint inflammation is not among them 4
• Common hormonal effects include: acne (8.5-13%), mood changes, breast tenderness
• These do not include polyarticular inflammatory arthritis

Pelvic pain misattributed to systemic symptoms:

• The single case report involved localized pelvic girdle pain 2
• This is mechanically distinct from inflammatory polyarthritis
• Pelvic pain does not indicate systemic autoimmune disease

Clinical Approach

When evaluating joint symptoms in an IUD user:

1. Perform standard RA workup (do not attribute symptoms to the IUD):

   • Assess joint distribution: symmetric small joints of hands/feet suggest RA
   • Check inflammatory markers: ESR, CRP
   • Order autoantibodies: RF, anti-CCP
   • Consider imaging if erosive changes suspected

2. Do not remove the IUD based on joint symptoms alone:

   • No evidence supports IUD removal for arthralgia or arthritis
   • Removal will not improve true rheumatoid arthritis
   • The 2024 CDC contraceptive guidelines support IUD continuation unless the patient desires removal for other reasons 5

3. Treat rheumatoid arthritis according to standard guidelines:

   • The presence of an IUD does not alter RA treatment
   • DMARDs, biologics, and JAK inhibitors can all be used safely with IUDs 6
   • No contraindication exists for RA medications in IUD users

Important Caveats

The IUD is not causing the arthritis. If a patient insists on IUD removal due to perceived joint symptoms, this represents a counseling opportunity rather than a medical indication. Explain that:

• Joint symptoms will persist after IUD removal if true RA is present
• Delaying appropriate RA diagnosis and treatment worsens long-term outcomes
• The temporal association is coincidental

Do not delay rheumatoid arthritis treatment while investigating the IUD as a potential cause—there is no biological mechanism by which levonorgestrel or copper IUDs trigger autoimmune arthritis.