In the middle of the lower abdomen, the shadow of intestinal tube can be seen under the abdominal skin, and the local abdominal wall is not continuous, consider white line hernia or incisional hernia. 1. White line hernia, white line tendon fibers are diagonally crossed, when pregnancy, abdominal fluid accumulation and other conditions, abdominal overstretching, can tear the crossed tendon fibers, and gradually formed white line hernia. Early hernia content is extraperitoneal fat, with the enlargement of the hernia sac, there will be intestinal tubes protruding, affecting the local abdominal wall discontinuity. Physical examination can be found here intestinal tube shadow. 2. incisional hernia, if the previous abdominal wall incision surgery, especially the transabdominal midline incision surgery, if the wound healing is poor, infection and other reasons, the negative pressure increases, the incision do open, the intestinal tube can be convex into the abdominal wall. The presence of a bowel shadow protruding under the abdominal skin in the middle of the lower abdomen requires a complete examination to clarify the diagnosis and condition before appropriate treatment is given.