If you have a deep, persistent wound or abscess that isn't healing, the cause is often 'anaerobic' bacteria—germs that thrive without oxygen. This Anaerobic Culture is the definitive test to find them. Your doctor will collect a sample of pus or tissue from deep within the wound. We then use a specialized, oxygen-free process to grow and identify these specific pathogens. This is not a routine culture; it's a deep investigation. It is the essential step to find the true cause of a non-healing infection, guiding your doctor to the precise antibiotic you need.