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Internal scar tissue is formed as a result of some surgical procedures, such as hartmannâs procedure, injury, inflammation or infection. The medical term for internal scarring is âadhesionâ. It is different from external scar tissue in the way that it forms. As it can cause tethers or a biological barrier, and result in pain and complications. It is caused by your bodyâs own healing process.
An esophageal stricture is a narrowing of your esophagus. Inflammation or damage to your esophagus may cause scar tissue that leads to narrowing. 1  Long-term acid reflux.  Birth defects, such as stenosis (narrowing) or diverticulosis (pouches)