How tall must a person be to be considered a giant due to gigantism?

Generally, gigantism is a condition caused by excessive secretion of growth hormone from the anterior pituitary gland. Adult males taller than 2 meters and adult females taller than 1.85 meters may be considered to have gigantism. A detailed analysis is as follows:

The primary causes of gigantism are pituitary growth hormone-secreting tumors or hypothalamic dysfunction, leading to excessive production of growth hormone. The disease typically develops during adolescence, before the closure of the epiphyseal growth plates. In addition to abnormal increases in height, patients exhibit a series of distinctive clinical features. For example, their hands and feet become noticeably enlarged and disproportionate, with thick, short fingers and toes, and their shoe size continues to increase. Facial features also change, including prominent cheekbones, protruding and broad jaw, and enlarged nose and lips. Patients may also experience symptoms such as excessive sweating and metabolic hyperactivity, as excess growth hormone affects metabolic processes by promoting protein synthesis, fat breakdown, and gluconeogenesis. Furthermore, accurate diagnosis of gigantism requires blood tests to measure growth hormone and insulin-like growth factor-1 (IGF-1) levels, combined with imaging studies to determine the presence of pituitary tumors or other abnormalities.

In daily life, it is important to maintain a balanced and moderate diet, avoiding overeating that could加重 physical strain. Regular medical check-ups are also recommended to monitor health status and facilitate timely treatment and rehabilitation.