you should be concerned when its about 104
Low body temperature in a 2 year old can be dangerous. However, this depends on how low the body temperature is and what the cause is from. See your doctor if you have a child with consistently low body temperature.
If your child has a fever you should take them to the emergency room right away. When a child's temperature goes above 102 degrees Fahrenheit it is considered serious.
A temperature of 97ºF is not dangerous. The human body keeps a normal temperature from 97.9 - 99.5 ºF (36.5 - 37.5ºC).
103 It gets dangerous when your body temperature gets too high and denature the enzymes in your body.
By raising body temperature
Yes. It is likely fatal.
No
Hypothermia
anything at 100F or over is considered a fever
Normal human body temperature is 37 C. Fevers should be diagnosed by physicians.
Such garments interfere with the evaporation of perspiration and can cause body temperature to rise to dangerous levels.