A disease is a particular abnormal condition that adversely affects the structure or function of all or part of an organism and is not immediately due to any external injury. [1] Diseases are often …

Dec 12, 2025 · Disease is any harmful deviation from the normal structural or functional state of an organism. It generally is associated with certain signs and symptoms.

The meaning of DISEASE is a condition of the living animal or plant body or of one of its parts that impairs normal functioning and is typically manifested by distinguishing signs and symptoms : …

Explore comprehensive guides on hundreds of common and rare diseases and conditions from the experts at Mayo Clinic.

DISEASE definition: 1. (an) illness of people, animals, plants, etc., caused by infection or a failure of health rather…. Learn more.

Find diseases and conditions; healthy living; workplace safety; environmental health; injury, violence and safety, global health and more.

Jun 5, 2025 · NIAMS research focuses on arthritis & musculoskeletal & skin diseases. Learn about symptoms , causes, & treatment for more than 50 diseases and conditions.

DISEASE definition: a disordered or incorrectly functioning organ, part, structure, or system of the body resulting from the effect of genetic or developmental errors, infection, poisons, nutritional …

Nov 19, 2025 · A disease has a specific cause and can be diagnosed by a healthcare provider. A disorder disrupts normal body functions and may not have a known cause. Syndromes are …

Dec 19, 2025 · Overview of common diseases and conditions that afflict humans.