Related concepts:

Acute appendicitis

Introduction to appendicitis:

Appendicitis is easily the most common cause of emergency abdominal surgery in children. Nevertheless, the diagnosis is often missed, leading to a perforation or rupture of the appendix.

What is appendicitis?

The appendix is a small, hollow, worm-shaped tube that attaches to the large intestine. Appendicitis is an inflammation of the appendix; the appendix becomes hot, red, tender, and swollen.

A piece of food or stool lodged in the appendix can block the opening and start the swelling of appendicitis.

Who gets appendicitis?

Anyone can get appendicitis. It is rare during infancy, but fairly common by school age. It becomes increasingly common with each passing year of childhood and adolescence.

Appendicitis is more common in boys than in girls, and can run in some families. It is also more common with certain medical conditions, such as cystic fibrosis. Some have also suggested that it may be more common in children with a diet low in fiber.

Appendicitis tends to be a bit more common in the autumn and spring, but it can occur year round.

What are the symptoms of appendicitis?

The classic symptoms of appendicitis are pain, vomiting, and fever.

The pain is usually the first symptom, and often begins around the belly button. As the inflammation worsens, the pain shifts to the area of the appendix, usually in the right lower abdomen. If the appendix bursts, the pain becomes more diffuse. The pain of appendicitis is usually accompanied by a markedly decreased appetite. It sometimes causes increased urination as well.

The vomiting usually follows a few hours later. In gastroenteritis, on the other hand, vomiting usually begins before the pain. Diarrhea is uncommon in appendicitis.

A low-grade fever is common.

Although this is the classic story, the symptoms of appendicitis vary enough that the diagnosis is often delayed.

Is appendicitis contagious?

No

How long does appendicitis last?

The time from the beginning of symptoms until the appendix bursts (if untreated) is usually 36 to 48 hours

How is appendicitis diagnosed?

The diagnosis is suspected based on the history and physical exam. Blood and urine tests are often performed, as well as an imaging study to help distinguish appendicitis from other causes of abdominal pain.

Appendicitis is sometimes obvious, but often it is not easy to recognize at all.