An adjustment disorder is a type of mental disorder resulting from maladaptive, or unhealthy, responses to stressful or psychologically distressing life events. This low level of adaptation then leads to the development of emotional or behavioral symptoms. Often, a person experiences a stressful event as one that changes his or her world in some fundamental way. An adjustment disorder represents significant difficulty in adjusting to the new reality.
The stressful events that precipitate an adjustment disorder vary widely. They may include the loss of a job; the end of a romantic relationship; a life transition such as a career change or retirement; or a serious accident or sickness. Some are acute "one-time" stressors, such as relocating to a new area, while others are chronic, such as caring for a child with mental retardation.
Read more: http://www.minddisorders.com/A-Br/Adjustment-disorder.html#ixzz7wWuIu1by
Information provided by: https://www.rainn.org/