What do the results mean?
Your sample will be placed on a slide and treated with the Gram stain. A laboratory professional will examine the slide under a microscope. If no bacteria were found, it means you probably don’t have a bacterial infection or there weren’t enough bacteria in the sample.
If bacteria were found, it will have certain qualities may provide important information about your infection:
- If the bacteria was colored purple, it means you likely have a Gram-positive infection.
- If the bacteria was colored pink or red, it means you likely have a Gram-negative infection.
Your results will also include information about the shape of the bacteria in your sample. Most bacteria are either round (known as cocci) or rod-shaped (known as bacilli). The shape can provide more information about the type of infection you have.
Although your results may not identify the exact type of bacteria in