A child with GHD does not produce enough GH, and growth begins to slow after a while. Without treatment, your child may be very short for his or her age. Your child may deposit more fat in the abdomen and face and have decreased blood sugar levels. Children with GHD may be sad or upset about their height, weight, or other aspects of their life, because of their shortness and body image.

Adults who don't have enough growth hormone, even those of normal height, can suffer from lack of energy, muscle weakness, emotional distress, and other problems. GH is a powerful hormone that may have an important role in controlling areas of your brain that involve your emotions. You might also feel tired, weak, and not interested in doing things you normally would do.