Who is an endocrinologist, and what is their educational background?
Endocrinology is an internal medicine subspecialty that focuses on the disorders of the endocrine system. Endocrinologists are medical doctors that treat these disorders. The human body has various endocrine glands, such as the adrenal, parathyroid, pineal, pituitary, and thyroid glands. Common endocrine problems include- hypothalamic diseases, diabetes, pancreatic cancers, hyperthyroidism, goiter, adrenal cortex dysfunction, and bone conditions.
Endocrinologists must complete four years of graduate school, four years of medical school, and a two to three-year-long residency in internal medicine. They must then undertake a fellowship in endocrinology, diabetes, and metabolism and pass an exam to earn a certification from the American Board of Internal Medicine. Some also further specialize in various areas of endocrinology, such as diabetes, oncology, pediatric endocrinology, and gender affirmation.
Subspecialties an endocrinologist can specialize in
Endocrinologists in the U.S. can specialize in various areas and become experts in that specialty. Thus, if you ever need care in a particular area of endocrinology, your primary care physician may make a referral to them, or you may also approach them directly for specialized care.
Typically, an endocrinologist can choose to specialize in the following fields:
Diabetes and metabolism: Metabolism refers to the process by which the human body converts food into energy through various chemical reactions. Common metabolic disorders include Type I Diabetes (where insulin is insufficient), Type II Diabetes (where the body does not utilize the insulin correctly), gestational diabetes ( diabetes during pregnancy), and pancreatic diabetes (caused by inflammation of the pancreas). Other metabolic disorders include obesity, metabolic syndrome, and inherited metabolic disorders.
Endocrinologists can also manage certain bone conditions under this subspecialty. These include:
- Hypercalcemia (when the blood has elevated levels of calcium)
- Hypocalcemia (when the blood has depleted levels of calcium)
- Osteopenia (loss of bone density)
- Osteoporosis (porous and weak bones)
- Vitamin D deficiency
- Metabolic bone disease
Endocrinology nuclear medicine: This branch employs atomic medicine to treat hormonal imbalances. Nuclear medicine mainly focuses on benign and malignant thyroid, parathyroid, and adrenal gland disorders.
The thyroid is a gland located in front of the neck. It controls the speed of the human body's metabolic rate by releasing the following hormones - thyroxine (T4), triiodothyronine (T3), reverse triiodothyronine (RT3), and calcitonin. Calcitonin regulates blood calcium levels, while T4, T3, and RT3 control metabolism. Common thyroid diseases are hyperthyroidism (increased levels of thyroid hormones), hypothyroidism (decreased levels of thyroid hormones), thyroiditis (inflammation of the thyroid gland), goiter (enlargement of the thyroid gland), and thyroid masses and modules.
Grave's disease and Hashimoto's disease are both autoimmune conditions that affect the thyroid gland. While Grave's disease leads to hyperthyroidism, Hashimoto's disease leads to hypothyroidism.
Neuroendocrinology: It involves studying the connection between the nervous and endocrine systems. Endocrinologists specializing in this field focus on understanding how the brain controls and regulates hormonal activities.
Endocrine oncology: This subspecialty deals with preventing, diagnosing, and treating cancers originating in and affecting the endocrine system. Typically, endocrine tumors and cancers manifest as carcinomas in the thyroid, parathyroid, pituitary, adrenal, pancreatic, and adrenal cortex areas.
Reproductive endocrinology: Specialists in this field address conditions that affect reproduction and other sexual functions in the body. These specialists are also known as fertility experts. They manage conditions such as erectile dysfunction, hypogonadism, menopausal disorders, ovarian cysts, polycystic ovary syndrome (PCOS), acromegaly (decreased growth hormones), and gigantism (increased growth hormones).
Pediatric endocrinology: This field encompasses all the endocrine conditions affecting children, including the abnormal development of the endocrine system and sexual organs. Diabetes, thyroid disorders, and growth disorders are the most common types of endocrine system disorders in children.
Understanding hormonal imbalance
Many experience hormonal fluctuations at different life stages, but imbalances arise when endocrine glands malfunction. These glands, including the adrenal glands, gonads, pineal gland, pituitary gland, hypothalamus, thyroid, parathyroid glands, and pancreatic islets, are dispersed throughout the body and regulate various organs. Lifestyle choices, health conditions, and environmental factors can all impact these glands, leading to potential hormone irregularities.
Hormones are vital chemical messengers produced by the endocrine glands. They go via the bloodstream to reach tissues and organs, carrying messages asking the organs what and when to do.
They regulate essential bodily functions, including metabolism, blood sugar, growth, blood pressure, reproductive cycles, sexual function, and mood. Any imbalance can significantly disrupt these functions.
Hormonal imbalances can affect men and women, influencing insulin, steroids, growth hormones, and adrenaline. While women may also experience estrogen and progesterone fluctuations, men are more prone to testosterone disruptions. Symptoms differ based on the affected gland and gender.
For women, signs of hormonal imbalance may include:
- Mood swings
- Gastrointestinal issues
- Irregular menstrual cycles
- Infertility
- Menstrual pain
- Low libido
- Insomnia
- Weight fluctuations
- Brittle bones
- Excessive hair growth
- Skin rashes
Meanwhile, men with low testosterone may face:
- Decreased libido
- Erectile dysfunction
- Muscle loss
- Hair thinning
- Chest tenderness
Endocrinologists rely on various tests to diagnose hormonal imbalances. Blood tests can measure estrogen, testosterone, or thyroid hormone levels. Imaging tests like ultrasound or MRI help detect cysts or tumors that may cause excess hormone production, while urine tests, such as cortisol, can assess hormones tied to the menstrual cycle.
Some companies also provide at-home testing kits, but do verify the laboratory's certification and reliability before ordering their package.
Reasons you should visit an endocrinologist near you
If you experience the symptoms below or have associated conditions, consider seeing a physician or a top endocrinologist near you.
- If you have or suspect diabetes and are prone to other complications
- If you have a history of diabetes, PCOS, or hyperthyroidism in your family
- If you are facing severe exhaustion and muscle weakness
- If you suspect an enlarged thyroid (located at the base of the neck)
- If you haven't gotten your first period yet (primary amenorrhea) or are experiencing irregularities in your menstrual cycle for more than 3 to 6 months
- If you are experiencing developmental problems and growth delays
- If you notice a decreased sex drive
- If you are facing infertility issues
How do endocrinologists diagnose disorders?
Endocrinologists typically diagnose disorders by measuring hormone levels in blood or urine samples, performing tests involving the injection of a stimulant or inhibiting agent, and analyzing the hormone response. If necessary, they may also order imaging tests or other procedures.
Examples of diagnostic procedures they use include:
- Adrenocorticotropic hormone (ACTH) stimulation tests for diagnosing adrenal disorders
- Fine needle aspiration (FNA) biopsy for microscopic evaluation of cells
- Computed tomography (CT) scan for three-dimensional imaging of internal structures
- Urine analysis for a precise idea of the hormone levels
- Corticotropin-releasing hormone (CRH) stimulation test for checking adrenal disorders
- Magnetic resonance imaging (MRI) for highly detailed images of the pituitary gland
- Dexamethasone suppression test for detecting Cushing's disease
- Dotatate scan for detecting neuroendocrine tumors
- Ultrasound for identifying fluids or masses in soft tissues
- Positron emission tomography (PET) for identifying metabolic abnormalities common in most cancers
- Radioactive iodine (RAI) scan for checking regular and cancerous cells in the thyroid gland
- The oral glucose tolerance test uses the insulin hormone's reaction to identify diabetes.
Five ways to maintain hormonal balance
While the endocrine system produces the exact amount of hormones your body needs to function, a sedentary lifestyle and improper diet could affect hormonal balance. Depending on the cause of one's hormonal imbalance, treatments like medication or hormone replacement therapy may be recommended. However, certain habits can help improve overall health and may aid in maintaining hormonal balance:
- Incorporate protein in your diet - Protein provides amino acids that help produce peptide hormones (protein-derived hormones). Endocrine glands make these hormones using amino acids. Some of these hormones can help you feel full and regulate energy metabolism. A minimum of 20-30 grams of protein is recommended. Foods such as lentils, pulses, grains, chicken, and fish contain high amounts of protein.
- Take supplements—Supplements such as black cohosh root (bugbane or rattleweed) support women's health issues such as premenstrual syndrome (PMS) and menstrual irregularities. Research also reveals that black cohosh helps to relieve menopausal symptoms. Indian ginseng (or winter cherry) is an herbal pharmaceutical that releases cortisol. Some studies suggest Indian ginseng supplements help lower stress, improve sleep, and lower blood cortisol.
- Reduce sugar intake - Sugary foods such as energy and soft drinks can heighten blood sugar levels, causing diseases like type 2 diabetes and obesity. Long-term intake of fructose present in honey, refined sugar, agave, and fruit juice may cause the suppression of leptin, a hormone needed to feel full after a meal, which may lead to weight gain.
- Consume healthy fats and maintain gut health - Introducing natural fats (foods containing omega-3 fatty acids) like avocados, olive oil, eggs, dark chocolate, fish, and nuts can help decrease insulin resistance and appetite. Research also suggests that omega-3s prevent cortisol levels from increasing during chronic stress. The gut microbiome also regulates feelings of fullness, which aid in maintaining weight and burning calories.
- Get quality sleep every night—Besides everyday lifestyle modifications like eating and exercising regularly, sleeping well is also essential for good health. Sleep deprivation can increase cortisol levels and, hence, insulin resistance. The brain also needs uninterrupted deep sleep to go through all the stages of sleep and release the growth hormone, which primarily occurs at night.
Find endocrinologists near you in Houston, Texas
The endocrine system creates hormones that regulate many vital biological processes, including metabolism, pulse rate, heart rate, growth, and development. Overall, these functions help maintain homeostasis, which is the human body's tendency to maintain stability. An imbalance in hormones could lead to chronic disorders that could be life-threatening. Therefore, to maintain hormonal balance through diet, a visit to an endocrinologist near you is essential to help detect any issues within the endocrine system early.
Finding the right endocrinologists near you may seem like a daunting task. However, Zocdoc is one platform that directly connects users to healthcare providers without the hassles of visiting and waiting long hours at a hospital. If you live in Houston and want to book an online consultation or in-person appointment, see the Zocdoc website and enter your location, condition, insurance carrier, and plan. Your search results will display a range of top-rated specialists in your area. You can filter these results by the time of the day, gender, spoken languages, pediatric care, and hospital affiliation, among other criteria.
Zocdoc provides information about each specialist's medical education, training, and certifications, based on which you can select your provider. Besides their background, you can also read honest and verified patient reviews. To check whether your chosen provider is in-network, i.e., whether they accept your insurance carrier and plan, enter it in the drop-down menu at the top of the page. Your results will automatically display in-network providers. If you don't find your insurance plan listed on Zocdoc, try uploading an image of your insurance card (this feature is only available for medical insurance cards, not vision or dental). Scanning the picture, we will display your likely plan. If you face any issues while uploading the image, contact our service team and visit Zocdoc's patient help center for additional assistance.
Zocdoc also allows users to schedule appointments on the same day, early in the morning (before 10 a.m.), or after hours (after 5 p.m.).
Prevalence of endocrine disorders in Houston, Texas
A report from the Centers for Disease Control and Prevention (CDC) states that over 2.6 million adults, i.e., 12.4% of the population residing in Texas, have been diagnosed with diabetes. Out of the total cases, nearly 621,000 people are unaware of their diabetes. Almost 34% of the population (over 7.4 million) are prediabetic. It was also reported that approximately 201,104 Texans are diagnosed with diabetes each year.
The American Diabetes Association also estimates that the medical expenditure of people with diabetes is about 2.3 times more than those who do not have diabetes. Nearly 13.5% of the population in Houston suffers from diabetes. Houston also reported in 2021 that out of 3,646 COVID-19 deaths in Houston, 51.9% had diabetes, and 23% were obese.
According to the data collected by the Texas Department of State Health Services in 2023, there are a total of about 2,098 new cases of pancreatic cancer 4,226 new cases of pancreatic cancer. Out of these, cases reported in men (2,214) were higher than in women (1,662). On the other hand, out of approximately 3,757 cases of thyroid cancer reported in women stood at 2,743.
Sources
American College of Physicians
Cleveland Clinic[1]
Cleveland Clinic[2]
Cleveland Clinic[3]
Cleveland Clinic[4]
Rush University System for Health
American Diabetes Association
Texas Department of State Health Services
Verywell Health
WebMD[1]
WebMD[2]
Medical News Today
