Endocrine Disorders

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  • By: Mwaura Mwangi

    The endocrine system is a network of glands that produce and release hormones that help control many important body functions, including the body’s ability to change calories into energy that powers cells and organs. The endocrine system influences how your heart beats, how your bones and tissues grow, even your ability to make a baby. It plays a vital role in whether or not you develop diabetes, thyroid disease, growth disorders, sexual dysfunction, and a host of other hormone-related disorders.

    All Endocrine Disorders

    Acromegaly Addison’s Disease Adrenal Cancer
    Adrenal Disorders Anaplastic Thyroid Cancer Cushing’s Syndrome
    De Quervain’s Thyroiditis Diabetes Follicular Thyroid Cancer
    Gestational Diabetes Goiters Graves’ Disease
    Growth Disorders Growth Hormone Deficiency Hashimoto’s Thyroiditis
    Hurthle Cell Thyroid Cancer Hyperglycemia Hyperparathyroidism
    Hyperthyroidism Hypoglycemia Hypoparathyroidism
    Hypothyroidism Low Testosterone Medullary Thyroid Cancer
    MEN 1 MEN 2A MEN 2B
    Menopause Metabolic Syndrome Obesity
    Osteoporosis Papillary Thyroid Cancer Parathyroid Diseases
    Pheochromocytoma Pituitary Disorders Pituitary Tumors
    Polycystic Ovary Syndrome Prediabetes Reproduction
    Silent Thyroiditis Thyroid Cancer Thyroid Diseases
    Thyroid Nodules Thyroiditis Turner Syndrome
    Type 1 Diabetes Type 2 Diabetes
    Acromegaly Addison’s Disease Adrenal Cancer
    Adrenal Disorders Anaplastic Thyroid Cancer Cushing’s Syndrome

    Glands of the Endocrine System

    Each gland of the endocrine system releases specific hormones into your bloodstream. These hormones travel through your blood to other cells and help control or coordinate many body processes.

    Causes of Endocrine Disorders

    Endocrine disorders are typically grouped into two categories:

    • Endocrine disease that results when a gland produces too much or too little of an endocrine hormone, called a hormone imbalance.
    • Endocrine disease due to the development of lesions (such as nodules or tumors) in the endocrine system, which may or may not affect hormone levels.

    The endocrine’s feedback system helps control the balance of hormones in the bloodstream. If your body has too much or too little of a certain hormone, the feedback system signals the proper gland or glands to correct the problem. A hormone imbalance may occur if this feedback system has trouble keeping the right level of hormones in the bloodstream, or if your body doesn’t clear them out of the bloodstream properly.

    Increased or decreased levels of endocrine hormone may be caused by:

    • A problem with the endocrine feedback system
    • Disease
    • Failure of a gland to stimulate another gland to release hormones (for example, a problem with the hypothalamus can disrupt hormone production in the pituitary gland)
    • A genetic disorder, such as multiple endocrine neoplasia (MEN) or congenital hypothyroidism
    • Infection
    • Injury to an endocrine gland
    • Tumor of an endocrine gland

    Most endocrine tumors and nodules (lumps) are noncancerous. They usually do not spread to other parts of the body. However, a tumor or nodule on the gland may interfere with the gland’s hormone production.

    Types of Endocrine Disorders

    There are many different types of endocrine disorders. Diabetes is the most common endocrine disorder diagnosed in the U.S.

    Other endocrine disorders include:

    Adrenal insufficiency. The adrenal gland releases too little of the hormone cortisol and sometimes, aldosterone. Symptoms include fatigue, stomach upset, dehydration, and skin changes. Addison’s disease is a type of adrenal insufficiency.

    Cushing’s disease. Overproduction of a pituitary gland hormone leads to an overactive adrenal gland. A similar condition called Cushing’s syndrome may occur in people, particularly children, who take high doses of corticosteroid medications.

    Gigantism (acromegaly) and other growth hormone problems. If the pituitary gland produces too much growth hormone, a child’s bones and body parts may grow abnormally fast. If growth hormone levels are too low, a child can stop growing in height.

    Hyperthyroidism. The thyroid gland produces too much thyroid hormone, leading to weight loss, fast heart rate, sweating, and nervousness. The most common cause for an overactive thyroid is an autoimmune disorder called Grave’s disease.

    Hypothyroidism. The thyroid gland does not produce enough thyroid hormone, leading to fatigue, constipation, dry skin, and depression. The underactive gland can cause slowed development in children. Some types of hypothyroidism are present at birth.

    Hypopituitarism. The pituitary gland releases little or no hormones. It may be caused by a number of different diseases. Women with this condition may stop getting their periods.

    Multiple endocrine neoplasia I and II (MEN I and MEN II). These rare, genetic conditions are passed down through families. They cause tumors of the parathyroid, adrenal, and thyroid glands, leading to overproduction of hormones.

    Polycystic ovary syndrome (PCOS). Overproduction of androgens interfere with the development of eggs and their release from the female ovaries. PCOS is a leading cause of infertility.

    Precocious puberty. Abnormally early puberty that occurs when glands tell the body to release sex hormones too soon in life.

    Testing for Endocrine Disorders

    If you have an endocrine disorder, your doctor may refer you to a specialist called an endocrinologist. An endocrinologist is specially trained in problems with the endocrine system.

    The symptoms of an endocrine disorder vary widely and depend on the specific gland involved. However, most people with endocrine disease complain of fatigue and weakness.

    Blood and urine tests to check your hormone levels can help your doctors determine if you have an endocrine disorder. Imaging tests may be done to help locate or pinpoint a nodule or tumor.

    Treatment of endocrine disorders can be complicated, as a change in one hormone level can throw off another. Your doctor or specialist may order routine blood work to check for problems or to determine if your medication or treatment plan needs to be adjusted.

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