It is made up of three layers of flat aponeurosis on the anterolateral abdominal wall interwoven on the anterolateral median line, with the upper width and the lower width. The width above the umbilicus is about 1~2cm, which is tougher and has fewer blood vessels, so it is more obvious. At the white line, holes or cracks often appear between interlaced aponeurosis fibers, protruding from blood vessels and nerves, such as extraperitoneal tissues and even peritoneal walls, thus forming white line hernia.

My very best wishes to your health