Agitation is an unpleasant state of extreme arousal, increased tension, and irritability.
Extreme agitation can lead to confusion, hyperactivity, and hostility. Agitation can come on suddenly or over time. It can last for just a few minutes, or for weeks and even months. Pain, stress, and fever can all increase agitation.
Agitation by itself may not be a sign of a health problem. However, if other symptoms occur, it can be a sign of disease.
When agitation lasts for hours and there is changed awareness (altered consciousness), doctors often call this "delirium." Usually this has a medical cause such as alcohol withdrawal or an infection (in elderly adults). Older adults often have delirium while hospitalized.
Causes of agitation include:
Agitation can be associated with anxiety and depression, bipolar disorder, and schizophrenia.