What is Difference between Disease and Disorder

Often in the blogging community of medication & health, the terms “disease” and “disorder” are thrown around interchangeably. This happens because there hasn’t been much discussion on the difference between disease and disorder. Physical disorders are problems that can be identified using certain tests such as brain scans or chemical tests.



Even the definition of Google search engine for disease says it is “a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury”. So in this article, let’s try to find out what is the difference between disease and disorder.

Disease and Disorder derived from

So before we discuss the difference between disease and disorder, let’s first see where these two words have originated from.

  1. Disease:
    The term disease can be traced back to its root in Old French where it was spelled as despise. Coined in 842 Circa this word can be broken down into two parts, des which means without or away and aise means ease.
  2. Disorder:
  3. The word disorder was coined in the late 15th century, it is also influenced by the old French where it was spelled as a disorder which was further influenced by the Latin word ordain.

While both terms are often used interchangeably, they actually have distinct meanings. Understanding the difference between the two can help clarify the diagnosis and treatment of medical conditions.

What is a Disease?

A disease is an abnormal condition affecting the body or its organs, usually characterized by specific signs and symptoms. It is often caused by external factors such as bacteria, viruses, or toxins that disrupt the normal functioning of the body. Diseases can range from minor ailments to life-threatening conditions.

Examples of diseases include malaria, diabetes, cancer, and tuberculosis. These are conditions that are caused by specific pathogens or genetic factors that lead to a disruption of normal bodily functions. Diseases are often treated with medications or other interventions that target the underlying cause.

What is a Disorder?

A disorder, on the other hand, is a functional abnormality or disturbance of the normal functioning of a body system, organ or structure. It is often caused by internal factors such as genetic mutations, hormonal imbalances, or structural abnormalities. Disorders can be present from birth or can develop later in life.

Examples of disorders include autism spectrum disorder, attention deficit hyperactivity disorder (ADHD), and bipolar disorder. These are conditions that affect the functioning of the brain or nervous system, leading to behavioral or cognitive changes. Disorders are often treated with therapies, such as behavioral or cognitive therapies, or medications that address the symptoms.

Key Differences Between Disease and Disorder

The main difference between disease and disorder is the cause of the condition. Diseases are often caused by external factors, such as pathogens or toxins, while disorders are often caused by internal factors, such as genetic mutations or structural abnormalities.

Diseases also tend to have specific signs and symptoms that can be used to make a diagnosis, while disorders may not have clear-cut diagnostic criteria. For example, while diabetes is a disease with specific symptoms such as high blood sugar and frequent urination, ADHD is a disorder that can present with a wide range of symptoms, making it more difficult to diagnose.

Additionally, diseases are often treated with medications or other interventions that target the underlying cause, while disorders are often treated with therapies that address the symptoms.

Conclusion

In conclusion, while the terms disease and disorder are often used interchangeably, they have distinct meanings. Diseases are abnormal conditions affecting the body or its organs caused by external factors, while disorders are functional abnormalities or disturbances of the normal functioning of a body system, organ, or structure caused by internal factors. Understanding the difference between the two can help clarify the diagnosis and treatment of medical conditions.


I hope you know the difference between disease and disorder.

Read also : What is Asthma, types of Asthma, causes, symptoms and treatments of Asthma.

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