Acute appendicitis is the most common surgical emergency abdomen and is highly overlooked and misdiagnosed by everyone, it can occur at any age. It is often misdiagnosed in the early stages. In the elderly and infants, once the appendix becomes inflamed, the condition is serious and can be life-threatening if not treated early. Most appendixes grow in the lower right abdomen of the body and are connected to the appendix. How can I know if I have appendicitis? There are many “signs” of an acute attack of appendicitis that can be used to make a preliminary determination. 1. Metastatic right lower abdominal pain. In a typical acute appendicitis, the abdominal pain starts in the upper middle abdomen or around the belly button, and the patient cannot precisely identify the exact location of the pain. After several hours or more than ten hours, the abdominal pain shifts to the right lower abdomen, and the pain is persistent. About 70-80% of patients have a history of abdominal pain as described above. 2. Gastrointestinal symptoms. Acute appendicitis is often accompanied by nausea, vomiting, loss of appetite and other symptoms. 3, there are significant pressure points. After the onset of appendicitis, most patients have a significant pressure point in the right lower abdomen although they have no conscious symptoms, and it is also the most important feature of appendicitis. 4. Systemic symptoms. Once the disease starts, it is often accompanied by dizziness, headache, weakness and other symptoms. If the condition is serious, fever and panic will also appear. Once the above symptoms appear, go to the hospital as soon as possible to confirm the diagnosis, so as not to delay the disease.