Ulcer

Definition

An ulcer is an open sore or lesion that fails to heal, often caused by infection, underlying medical conditions, or physical trauma. Ulcers can occur on the skin or mucous membranes of the digestive system.

5 Must Know Facts For Your Next Test

1. Ulcers on the skin are commonly caused by bacterial infections such as Staphylococcus aureus.
2. Peptic ulcers in the digestive system are often associated with Helicobacter pylori infection.
3. Prolonged use of nonsteroidal anti-inflammatory drugs (NSAIDs) can lead to the development of gastric ulcers.
4. Diabetic patients are at higher risk for developing chronic skin ulcers due to poor circulation and neuropathy.
5. Treatment for ulcers includes antibiotics for infections and medications to reduce stomach acid in peptic ulcers.

Review Questions

Related terms

Staphylococcus aureus:

A common bacterium that causes skin infections and can lead to ulcer formation.

Helicobacter pylori:

A bacterium that infects the stomach lining and is a major cause of peptic ulcers.

Nonsteroidal Anti-Inflammatory Drugs (NSAIDs): Medications such as ibuprofen and aspirin that can cause gastric irritation leading to ulcers.