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.
For many patients, a herniated disc does not result in any symptoms. It is possible for the torn disc in the spine to heal over several weeks or months through an internal reabsorption process with no symptoms being felt.