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.
The intervertebral discs are vulnerable to a variety of injuries. The most common is called a herniated disc (a.k.a., a bulging disc or slipped disc). Herniated discs usually occur later in life.