Flip-flops and latches are used as data storage elements. A flip-flop stores a single bit (binary digit) of data; one of its two states represents a one and the other represents a zero. Such data storage can be used for storage of state, and such a circuit is described as sequential logic.
1 Incisional hernia can occur through a scar if you have had abdominal surgery in the past. 2  Umbilical hernia is a bulge around the belly button. 3  It occurs when the muscle around the belly button does not close completely after birth.
A hernia is a weakness in the abdominal wall (such as inguinal, umbilical, incisional) or diaphragm (hiatal hernia). Surgery to repair the hernia can involve use of sutures, and possible use of mesh. Open or laparoscopic surgery can be a means to repair hernias, with laparoscopic surgery using small incisions.