Questioning the PTSD diagnosis - what does it really tell us about depression? - A team of researchers in the USA is questioning the value of the PTSD diagnosis as the symptoms are found equally in depressed patients without trauma. But this is looking through the wrong end of the telescope. How much more useful it would be to ask whether depression might be caused by unpleasant mental or physical experience?
The all-or-nothing diagnosis of PTSD is not a reflection of human experience. PTSD symptoms can be found in depressed people because unpleasant events contribute to depression. Diagnostic categories attempt to be separate entities, but in reality there is a continuum from 'normal' mental health through increasing anxiety and depression into trauma and psychosis.