Hyperphagia; Increased appetite; Hunger; Excessive hunger; Polyphagia
Increased appetite means you have an excess desire for food.
An increased appetite can be a symptom of different diseases. For example, it may be due to certain mental conditions and endocrine gland disorders.
An increased appetite can come and go (intermittent), or it can last for long periods of time (persistent), depending on the cause. It does not always result in weight gain.
The terms "hyperphagia" and "polyphagia" refer to someone who is focused only on eating, or who eats excessively before feeling full.
Causes of increased appetite include:
Jensen MD. Obesity. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 239.
Saper CB. Autonomic disorders and their management. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 445.