Post-traumatic Stress Disorder (PTSD)
Post-traumatic stress disorder (PTSD) is a kind of anxiety disorder. When a patient experiences or witnesses major traumas or catastrophic events, such as threats to personal safety, tragedy of witnessing death or injury, sudden loss of family members, natural disasters, or personal experience of violence or crimes, he or she would often feel lost or anxious. In some cases, the patient may be easily frightened and suffer from insomnia. These emotions of loss, uneasiness or distress often become less severe over time. However, if such symptoms continue to worsen and persist for over a month, leading to interference with daily life, it may be necessary for the patient to seek professional assistance for assessment and support.