Microorganisms

About Microorganisms

Microorganisms are extremely small living organisms that cannot be seen with the naked eye. Some are harmless or beneficial, while others can cause infections and digestive disorders.

This section provides information about common microorganisms associated with gastrointestinal infections and the laboratory tests used to identify them.

---

How Gastrointestinal Infections Spread

Common routes of transmission and contributing factors include:

• contaminated food or water;
• inadequate hand hygiene;
• direct contact with infected people;
• changes in the normal intestinal flora after antibiotic use.

Some infections cause sudden symptoms, while others may persist or return over time.

---

Common Symptoms

Symptoms associated with gastrointestinal infections may include:

• abdominal pain;
• diarrhea, sometimes with blood or mucus;
• nausea and vomiting;
• bloating and gas;
• fever;
• fatigue and weakness.

Some infections cause mild, short-lived symptoms, while others may persist and require medical assessment and treatment.

---

Common Microorganisms Affecting the Digestive System

• Candida
• Giardia lamblia
• Helicobacter pylori
• Salmonella
• Shigella

Each microorganism has distinct characteristics, routes of transmission, and treatment options, which are explained on the respective pages.

---

When to Consult a Doctor

Medical advice is recommended if you experience:

• diarrhea lasting more than a few days;
• blood in the stool;
• severe abdominal pain;
• high fever;
• unexplained weight loss;
• symptoms that return after treatment.

Accurate laboratory diagnosis can help identify the microorganism responsible for the infection and guide the choice of treatment.

If you have digestive symptoms or laboratory results that require interpretation, the specialists at Klinika Kajo can provide further assessment and personalized guidance.

👉 Book a gastro-hepatology consultation