Abdominal pain might seem harmless at first, however, if it persists, it might indicate something serious. While common conditions such as acidity, indigestion and gas can cause abdominal pain, it can ...

You may also have pain and pressure in the affected area. Weak Abdominal Muscles Weak abdominal muscles may be the cause if swelling is apparent when you stand up but goes away when you lay down.

“If you tend to have more slow-twitch fibers, your abs won’t develop appearance-wise as much as the abs of people who may have more fast-twitch fibers in their abdominal muscle wall.