Appendix: what it is, where it is located, and why it is needed

The appendix is a small intestinal appendage. It is remembered when pain appears in the right side. Let's discuss where it is located, how it is structured, and why the word 'appendicitis' sounds like a reason to go to the hospital.

Appendix: what it is

The appendix is a small tubular organ attached to the beginning of the large intestine. It is located in the lower right part of the abdomen. It has no known function. That is why removal of the appendage does not harm a person.

Where the appendix is located and how it is structured

Human anatomy is such that the appendix extends from the cecum — the first section of the large intestine. It is a narrow tube connected to the intestinal lumen. The appendage is located in the lower right part of the abdomen, so during inflammation, the pain gradually shifts to that area.

Why the appendix is needed by humans

According to modern data, the appendix does not perform an indispensable role. The appendix is not needed for life, so its removal is not harmful. Therefore, in appendicitis, doctors almost always suggest surgery — removing the organ is safe.

Appendix and appendicitis: what is the difference

The appendix is the organ itself. Appendicitis is its inflammation, that is, swelling and infection in the appendage. An inflamed appendix is no longer an anatomical norm but a condition requiring urgent hospital care. Appendicitis is a medical emergency: without treatment, the appendage can rupture.

Inflammation of the appendix: how it develops

The cause is obstruction inside the appendage. It leads to increased pressure, impaired blood flow, and inflammation. If the obstruction is not relieved, the appendix can burst, and the infection spreads throughout the abdomen — this condition is called peritonitis. Appendicitis occurs in people of any age, but more often at 10–30 years.

Symptoms usually begin with pain in the middle of the abdomen, near the navel. After a few hours, the pain shifts down to the right and intensifies. It may worsen with movement, coughing, or pressure. Other signs: nausea or vomiting, loss of appetite, elevated temperature, constipation or diarrhea, frequent urination. In pregnant women, young children, and the elderly, the pain may be less typical.

• Pain that gradually intensifies or does not go away
• Shift of pain to the lower right part of the abdomen
• Nausea, vomiting, loss of appetite
• Elevated temperature, constipation or diarrhea
• Sudden brief relief of pain followed by sharp deterioration

When abdominal pain requires urgent medical attention

You should seek medical help if abdominal pain gradually intensifies or does not go away, and also if it shifts to the lower right part of the abdomen. Diagnosis includes abdominal examination, blood tests, urine tests, ultrasound or CT, and if necessary, a pregnancy test. Sometimes doctors observe symptoms for several hours. If the picture is clear or there is a risk of rupture, surgery is suggested. Treatment of appendicitis is almost always surgical — removal of the appendage. In some cases, antibiotics are possible if the infection has not spread and surgery is risky. Recovery usually takes 1–2 weeks, longer with complications.

Call 103/112 if abdominal pain is severe, there is confusion, pale or mottled skin, difficulty breathing, or if pain after brief relief sharply intensified and covered the entire abdomen.

This material is for reference and does not replace a doctor's consultation: if in doubt, it is better to see a specialist.

This content is for reference and does not replace a doctor's consultation. Medical disclaimer