What evidence exists for using antibiotics in low back pain with Modic changes?
Modic changes are signal changes seen on MRI in the vertebrae next to the discs. Some researchers think that Modic type 1 changes (which show edema or swelling) might be caused by a low-grade bacterial infection. This has led to the idea that antibiotics could treat the pain. However, the evidence for this approach is limited and not strong enough to recommend routine use.
What the research says
A 2025 systematic review found only a few randomized controlled trials testing antibiotics for low back pain in people with Modic changes 3. The review concluded that the evidence is limited and uncertain. It looked at different groups, including people with Modic type 1 changes and disc herniation, and found that antibiotics might reduce pain and disability in the short term, but the results were not consistent 3. The review also noted that antibiotics can cause side effects, and the long-term benefits are unknown 3.
Other research has explored the possible link between bacteria and Modic changes. One study suggested that Cutibacterium acnes, a common skin bacterium, might be involved in disc degeneration and Modic changes 8. This has led to the controversial idea of using antibiotics for disc disease 8. Another review on antimicrobial therapies for chronic pain mentioned that symptoms of chronic low back pain associated with Modic type 1 changes might improve after antibiotic treatment, but significant questions remain about which patients benefit and what dose to use 7.
Importantly, the evidence is not strong enough for doctors to routinely prescribe antibiotics for low back pain with Modic changes. The systematic review emphasized that more high-quality research is needed before this can be recommended 3. The available studies are small, and the results are mixed, so the potential benefits must be weighed against the risks of antibiotic side effects and antibiotic resistance.
What to ask your doctor
- Could my low back pain be related to Modic changes seen on my MRI?
- What type of Modic changes do I have, and are they type 1?
- What does the current research say about antibiotics for my specific condition?
- What are the potential risks and side effects of taking antibiotics for back pain?
- Are there other treatments I should try first before considering antibiotics?
This question is drawn from common patient questions about Pulmonology & Critical Care and answered using cited medical research. We do not provide individualized advice.