Hormone deficiencies occur when the body does not produce enough of a certain hormone. Some common hormone deficiencies include: Thyroid hormone deficiency The thyroid gland controls metabolism and impacts growth and development. When it does not produce enough thyroid hormones, it is called hypothyroidism. Symptoms include fatigue, weight gain, constipation, cold sensitivity, and dry skin. Hypothyroidism is often treated with levothyroxine, a synthetic thyroid hormone. Growth hormone deficiency Growth hormone helps stimulate growth and cell reproduction in children and adolescents. A deficiency can lead to slowed growth and short stature. It typically requires treatment with growth hormone injections to help the child reach a normal height. Testosterone deficiency Testosterone is the main sex hormone in men. A deficiency may cause low energy levels, decreased muscle mass, erectile dysfunction, and changes in mood and cognitive function. It can be treated with testosterone replacement given by injection, patch, gel, or pellet. Estrogen deficiency Estrogen is one of the main female sex hormones involved in reproduction. Declining estrogen levels during menopause can lead to hot flashes, vaginal dryness, and bone loss. Estrogen therapy may help relieve menopausal symptoms. In summary, hormone deficiencies occur when glands in the body do not produce adequate amounts of hormones that regulate growth, metabolism, reproduction, mood, and more. Some deficiencies are a normal part of aging. Others may be related to gland disorders or damage and can appear at any age. Depending on the hormone affected, deficiency symptoms can significantly impact quality of life. Luckily, many hormone deficiencies today are treatable through medications and hormone replacement therapies. For more information, visit Vitality Restored Clinic.