Introduction
The incidence of spinal hematoma and abscess after neuroaxial block was 4.2 in 100,000, according to a study by the Royal College of Anesthetists. [1] We report a case of epidural abscess after transforaminal epidural block for lower leg pain.

Case report
A 72-year-old woman visited the pain clinic with right thigh pain. Radiology revealed disc space narrowing at L4he was diagnosed with spondylosis.
The surgical site was disinfected with hexitanol (2% chlorhexidine gluconate in 70% isopropyl alcohol) before the procedure. The right L4 root block was performed. After 2 weeks, the pain site changed to the L3 dermatome, but the other neurologic symptoms were not detected. The right L3 root block was performed again. After 3 days, she experienced motor weakness in both legs and pain at the coccyx and was admitted to the emergency department. Emergency MRI was performed and found to be epidural abscess (Figure 1). The patient was admitted to neurosurgery, and emergency surgery was performed.
Conclusion
If the pain persists or changes after the procedure, additional imaging studies should be performed