Hi, If a person with dementia has not had agitation as a symptom in the past or is more strongly agitated than usual, the problem may be related to a medical or physical condition like pneumonia, dehydration, poor nutrition, bladder infections and chronic disease conditions (e.g., diabetes or asthma) and this must be recognized and treated. Also if there is any change to his or her environment, that can cause the patient to become agitated. It is therefore important to make sure the patient’s environment is not too noisy, improperly heated, or poorly lit, as these factors can lead to increased agitation and other problems. It is also important to keep to a routine. The patient may become distressed if left along for too long or surrounded by too many people at once.