An abdominal hernia is a side effect of a diastasis. So, if you have an abdominal hernia you also have a diastasis! The most common one is at your belly button and called an umbilical hernia. However, you can have them anywhere above and below your belly button on the lines alba. When the muscles separate and this connective tissue called the linea alba that joins the separated muscles stretches sideways it becomes thinner and your belly button loses its support. Once you heal the connective tissue with the Tupler technique® your bellybutton will get the support it needs to go from an outie to an innie.