Bullae

Definition

Bullae are large, fluid-filled blisters that form on the skin due to various infections or conditions. They are typically larger than 0.5 cm in diameter and can be caused by bacterial infections such as Staphylococcus aureus.

5 Must Know Facts For Your Next Test

1. Bullae can result from bacterial skin infections like impetigo, caused by Staphylococcus aureus or Streptococcus pyogenes.
2. They are often associated with conditions like bullous impetigo and bullous pemphigoid.
3. Bullae contain clear or yellowish fluid and can rupture, leading to potential secondary infections.
4. Differentiating between bullae and vesicles is crucial; vesicles are smaller (less than 0.5 cm).
5. Management of bullae may involve antibiotics if a bacterial infection is present.

Related terms

Impetigo:

A contagious bacterial skin infection characterized by sores that can form bullae.

Staphylococcus aureus:

A common bacterium that can cause various infections, including those leading to bullae formation.

Bullous pemphigoid: An autoimmune disorder causing large, fluid-filled blisters primarily in older adults.