
Symptoms concerning nutrition metabolism and development

Anorexia
- clinical manifestation consisting of a physiopathological lack or loss of appetite accompanied by an aversion to food and the inability to eat.
- An abnormal loss of the appetite for food. Anorexia can be caused by cancer, AIDS, a mental disorder (i.e., anorexia nervosa), or other diseases.

Abnormal weight gain

Abnormal loss of weight and underweight

Loss of weight
- the reduction of overall body mass; may be due to disease, diet, or drugs; can be permanent or temporary, and may involve any tissue.
- A reduction in overall body mass.

Underweight

Feeding difficulties and mismanagement
- Imbalance in the normal feeding habits of an infant.

Lack of expected normal physiological development in childhood

Unspecified lack of normal physiological development

Failure to thrive
- Inability to grow and develop normally.
- Growth disorder of infants and children due to nutritional and/or emotional deprivation and resulting in loss of weight and delayed physical, emotional, and social development.

Delayed milestones

Short stature
- Growth retardation: Decreased rate of growth in the individual or in an affected joint or extremity. An example of the latter is micrognathia in Juvenile Rheumatoid Arthritis.

Polydipsia
- Chronic excessive intake of water; it may be from an organic cause, such as the dehydration of diabetes mellitus, diabetes insipidus, or a reaction to medication, or from a psychological cause. When untreated it can lead to water intoxication.
- Noncontingent excessive drinking behavior usually produced and maintained by operant schedules of reinforcement involving food as a reinforcer. Also used for disordered human populations.

Polyphagia
- ingestion of a greater than optimal quantity of food.

Adult failure to thrive
- Progressive functional deterioration of a physical and cognitive nature. The individual's ability to live with multisystem diseases, cope with ensuing problems, and manage his/her care are remarkably diminished.

Other symptoms concerning nutrition metabolism and development