A baby is considered to be premature if the mother goes into labor before reaching the 37th week of pregnancy which can cause numerous complications, both short and long-term. Babies who are born prematurely typically weigh under 5 pounds, 8 ounces and pose the risk of being underdeveloped. Some symptoms of prematurity include thin pink skin, low muscle tone, little scalp hair or body fat, and underdeveloped genitals. Complications of prematurity include difficulty regulating body temperature and problems with breathing, the kidneys, digestion, the nervous system, or blood problems such as anemia, hypoglycemia, and jaundice.