Comorbidities such as epilepsy, pain, vascular risk factors and infections are common in patients with dementiadisorders. The relationship between comorbidities and dementia is complex, and diagnosis and managementcan be met with barriers due to e.g. lack of insight. An individualized approach is necessary, taking the dementiadisorder and other relevant circumstances into consideration. Correct and timely management of comorbidities will help to improve quality of life and slow progression of the cognitive decline.