How did the white blood cell different confirm that might have appendicitis?

An elevated white blood cell count, particularly an increased number of neutrophils, can be a sign of appendicitis. When the appendix becomes inflamed or infected, the body's immune system responds by sending white blood cells to the area to fight the infection. As a result, the overall white blood cell count in the blood may increase.

A complete blood count (CBC), which measures the levels of various blood components, is routinely performed when appendicitis is suspected. If the white blood cell count is significantly elevated, it can support the suspicion of appendicitis, especially when accompanied by other symptoms such as abdominal pain, nausea, vomiting, and fever.

However, it's important to note that an elevated white blood cell count is not specific to appendicitis alone. It can also be caused by other medical conditions, such as infections, inflammation, or certain diseases. Therefore, doctors consider the overall clinical presentation, including symptoms, physical examination findings, and additional tests, to make an accurate diagnosis of appendicitis.