Complex post-traumatic stress disorder (CPTSD) is a stress-related mental disorder that generally occurs in response to complex traumas, which are commonly prolonged or repetitive exposures to a series of traumatic events, within which individuals perceive little or no chance to escape. CPTSD is a category of post-traumatic stress disorder (PTSD) in the ICD-11 classification, with three additional clusters of significant symptoms: emotional dysregulations, negative self-beliefs, and interpersonal difficulties. Some of the symptoms of CPTSD include prolonged feelings of terror, worthlessness, helplessness, distortions in identity or sense of self, and hypervigilance. CPTSD is similar to PTSD, but it also includes additional symptoms such as difficulty controlling emotions, feeling very angry or distrustful towards the world, constant feelings of emptiness or hopelessness, feeling as if you are permanently damaged or worthless, and feeling as if you are completely different from other people. CPTSD may be caused by experiencing recurring or long-term traumatic events, such as childhood abuse or neglect, domestic violence, sexual abuse, torture, sex trafficking, or slavery. If you have CPTSD, you may be offered therapies used to treat PTSD, such as trauma-focused cognitive-behavioral therapy (CBT) or eye movement desensitization and reprocessing (EMDR), and you may also be offered treatment for other problems you may have, such as depression or alcohol addiction.