Explanations of PTSD focus mainly in route that the mind is affected by traumatic experiences. Theorists speculate upon facing overwhelming trauma, the mind is unable to process thoughts and information in an ordinary way. It is as if thoughts and the thoughts during the time of the traumatic event undertake a life in their own, later intruding into consciousness and causing distress.
Pre-traumatic psychological factors (for example, low self-esteem) could make this process worse (for example, low self-esteem maybe https://www.myptsd.com/am-i-at-risk-for-ptsd/266/ reinforced by a brutal rape). Post-traumatic reactions by others (for example, a raped woman who is viewed by family as “dirty”) and from the self (for example, physical discomfort caused by thoughts of the rape) might also may play a role in influencing whether such symptoms persist. It's hypothesized that only after effective reprocessing of the traumatic event(s) do PTSD symptoms lower.