Back Abscess with Green Drainage: Urgent Signs and Treatment

A back abscess discharging green pus suggests bacterial infection—often Pseudomonas aeruginosa or other Gram‑negative organisms.

Immediate Actions

  • Seek medical care promptly – do not attempt self‑drainage.
  • Clinician will likely: culture drainage, start empiric antibiotics (covering Pseudomonas), perform incision & drainage (I&D) if fluctuant.
  • Green color may indicate pyocyanin pigment (Pseudomonas) or advanced neutrophilic breakdown.

Risk Factors

  • Diabetes, immunosuppression, recent surgery, IV drug use.

Follow‑Up

Wound care, antibiotic adjustment per culture, monitor for systemic signs (fever, sepsis).

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