Prolonged grief disorder and PTSD have some overlap in symptoms and are also common to have at the same time among those who have recently lost someone. Symptoms of PTSD include hyper-arousal, intrusive memories related to trauma, and avoidance while prolonged grief disorder is associated with separation distress, inability to accept the loss, and inability to move on in life leading to significant distress in everyday life. Generally, PTSD is more associated with intrusive symptoms while PGD (prolonged grief disorder) is associated with feelings of yearning. Both these disorders involve mental states, however, PTSD affects people through intrusive negative sensory/cognitive emotional thoughts and those with PGD are plagued by memories of the person who has passed, as well as the circumstances of their death and related situations. There is also a difference in diagnostic criteria when it comes to duration. In order to diagnose PTSD, 1 month is required but for PGD a minimum of 6 months is required for diagnosis.