This article deals with dementia, a disorder of old age, as it affects the geriatric population. “It is estimated that 24.3 million people worldwide suffer from dementia and that, with an estimated 4.6 million new cases each year, we can expect that approximately 43 million people and their families will face the challenge of dementia by 2020." (McNamera, 2011) I will cover three relevant points regarding this disorder that causes changes in the brain. • The first part will cover the pathology and staging of dementia. • The second part will explain the most common types of dementia many older people are diagnosed with. • The third part will summarize the treatment methods used to manage the disorder. Dementia is an acquired clinical disorder that affects the loss of brain cells, causing a gradual onset and continued decline of higher cognitive functions. This damage interferes with how parts of the brain cells communicate with each other. It affects memory, thinking, language, judgment and behavior. Dementia is classified into two categories: reversible and irreversible. Reversible dementia can be the result of a reaction to medications, metabolic disorders, emotional distress, infections, and nutritional deficiencies. These, however, are treatable and should be identified early if suspected to avoid lasting side effects. Unlike degenerative (irreversible) dementia, it is common in any age group. Irreversible dementia is the expanded classification for Alzheimer's, Parkinson's, and Huntington's disease. These tend to affect only the older population, people over sixty-five. As the disease worsens, people experience problems with short-term memory loss, such as forgetting things they said or did, although they can often remember events that happened... half of the paper... and duration varies by person per person. It depends on multiple factors, including age at diagnosis and other medical conditions. The signs and symptoms begin with cognitive impairments as all other forms of dementia begin. We should refrain from being prejudiced and judgmental because we don't take the time to truly understand this disorder and how it can affect our lives. Education and patience are the best ways to deal with this problem. Relevant topics involving dementia have been discussed in this article. The first part covered the pathology and staging of dementia. The second part explained the most common types of dementia that many people are diagnosed with. The third part summarized the treatment methods used to manage the disorder. We should apply a professional, respectful and empathetic approach while maintaining specific cultural traditions to achieve a positive outcome.