Some diseases that impact the endocrine system are hyperthyroidism, hypothyroidism, diabetes and adrenal insufficiency, notes TeensHealth. Developmental issues related to growth hormones can also result from a malfunctioning endocrine system.
Patients with hyperthyroidism have abnormally high levels of thyroid hormones in their bloodstreams, while hypothyroidism is characterized by insufficient levels of thyroid hormones, explains TeensHealth. An individual with hyperthyroidism may present with symptoms such as heat intolerance, nervousness, a rapid heart rate and heavy perspiration. Hypothyroidism causes many bodily processes to slow down, resulting in symptoms such as a slow heart rate, fatigue, constipation and weight gain.
Diabetes is an endocrine system disease involving the body's faulty handling of the hormone insulin resulting in blood sugar problems, notes TeensHealth. Type 1 diabetes results when the endocrine system's pancreas is unable to produce adequate levels of insulin, while the bodies of individuals with type 2 diabetes are unable to respond normally to the presence of insulin.
When the adrenal glands generate inadequate levels of hormones called corticosteroids, adrenal insufficiency results, explains TeensHealth. Common signs of adrenal insufficiency are dehydration, nausea, stomach pain, fatigue and dehydration.
When the endocrine system produces abnormally high levels of growth hormones in developing children and teenagers, their body parts can grow excessively large if they do not take medication to balance out their hormone levels, according to TeensHealth. Similarly, children and teenagers whose endocrine systems do not produce enough growth hormones can experience stunted growth.
The endocrine system is made up of several glands involved in the production of hormones, explains Palo Alto Medical Foundation. In humans, these glands include the adrenal glands, hypothalamus, thyroid, parathyroids, pineal body, reproductive glands, pancreas and pituitary gland, notes TeensHealth.