Is ultrasound necessary in determining whether i have appendicitis?

No.: The diagnosis of appendicitis is made by taking a careful history of one's symptoms, doing a careful physical exam, and performing basic laboratory work. If the diagnosis is unclear, a ct of the abdomen, or, less frequently, an ultrasound may aid in making the correct diagnosis.

No: History and physical exam may be all that is needed. Commonly in the us a ct scan may be done ultrsound can be helpful in looking for other conditions : gallstones , pelvic cysts etc.

Old school: An ultrasound is absolutely not required to diagnose appendicitis. An "old school" but effective approach to make the diagnosis is to listen to the patient's history, perform a thorough physical examination, and check some basic lab work. An ultrasound can help support the diagnosis, as can a ct scan. But neither is necessary.