Psychosocial short stature
Psychosocial short stature (PSS) is a growth disorder that is observed between the ages of 2 and 15, caused by extreme emotional deprivation or stress. The symptoms include decreased growth hormone (GH) and somatomedin secretion, very short stature, weight that is inappropriate for the height, and immature skeletal age.
Source: Wikipedia — Psychosocial short stature (CC BY-SA 4.0)