The acute emotional crises associated with abandonment can leave a lasting psychological impression on a person's psychobiological development, altering future decisions and behaviors to bereavement, rejection, or detachment. After an event of abandonment as a kid or a grownup, some individuals develop a sequel of post-traumatic signs that are sufficiently similar to post-traumatic stress disorder to be regarded as a variant of this diagnostic category. Psychological problems, illegal substance use, or the physical absence of caretakers or parents due to divorce or death can all lead to abandonment trauma, commonly referred to as abandonment post-traumatic stress disorder (PTSD).