A literature review discusses published information in a particular subject area, and sometimes information in a particular subject area within a certain time period.
Herniated discs often do not need to heal at all. That is because most minor and moderate herniated discs are not painful or problematic in any way. They merely exist. In fact, herniated discs are a common side effect of normal spinal aging.
In some cases, herniated discs heal by a process called resorption. During resorption, the body absorbs parts (fragments or tissue) from a herniated disc that has ruptured. A doctor or physical therapist may recommend exercises to reduce pain and strengthen the muscles that support the back to avoid further injury.