A group of common mental disorders characterized by mood change, hence sometimes referred to as mood or affective disorder. Symptoms of depression include low mood such as prolonged sadness and a loss of interest and enjoyment in ordinary experiences. These symptoms can impair emotional and physical wellbeing, and may also include feelings of guilt or low self-worth, disturbed sleep or appetite, irritability, low energy, pessimism, withdrawal, chronic physical pain, poor motivation, and poor concentration.

The identification of a specific disorder, syndrome, or disease following a process of clinical assessment and information-gathering.

An illness caused by infection or a failure of health rather than by an accident.

A covering put on an injury, esp. when there has been bleeding through the skin.

Basic medical treatment that is given to someone as soon as possible after they have been hurt or suddenly become ill.

When a bone breaks or cracks.

An injury caused by skin rubbing against another object where the top layer of skin separates from the bottom layer.

A disease of the body or mind.

A condition in which bacteria or viruses that cause disease have entered the body.

Physical harm or damage to someone's body caused by an accident or an attack.

Into or connected to a vein.

The practice of locating a person away from the immediate vicinity of others in order to prevent the transmission of disease.