The spleen is an organ of the body, hidden in the abdomen, just below the rib cage, normally not palpable except in the case of young children, the abdominal wall is flabby. During clinical examination, the dull area of the spleen can only be determined by percussion in the posterior axillary line. In cases where the spleen is enlarged, surpassing the rib margin, the doctor can feel it. Nowadays, thanks to the development of science and technology, ultrasound has helped diagnose more accurately.

The spleen is a vascular organ involved in the process of immune and hematological homeostasis. This vascular system, location and functions easily cause the spleen to suffer from some conditions with the initial manifestation of splenomegaly. From there, the normal functions of the spleen are also easily exaggerated, causing metabolic disorders in the body. Thus, early diagnosis of splenomegaly will help timely intervention and adjustment.