Endocrinology and Metabolism: Causes, Symptoms, and Treatment
Medically reviewed by Harsha Moole, MD, Internal Medicine. Last reviewed: October 2, 2026.
What kind of doctor treats Endocrinology and Metabolism?
An endocrinologist treats these conditions. This is a doctor who trained for extra years in hormones and gland disorders after medical school. A direct primary care or concierge doctor can be a first stop for an evaluation and can refer you to a specialist when needed.
What is endocrinology and metabolism?
Endocrinology is the medical field that studies hormones. Hormones are chemical messengers made by glands. Metabolism is the way your body turns food into energy. Doctors in this field treat problems where glands make too much or too little of a hormone.
Your body has several glands, including the thyroid, pancreas, and adrenal glands. They release hormones that control growth, energy use, blood sugar, and mood. When a gland does not work the right way, the whole body can feel the effect.
Symptoms
Symptoms depend on which gland is affected and can be vague at first. Common ones include feeling very tired even after rest, gaining or losing weight without trying, feeling unusually hot or cold, and having a fast or slow heartbeat. These symptoms can have many causes.
Causes and who gets it
The immune system may attack a gland by mistake, as in type 1 diabetes and some thyroid diseases. Growths called nodules or tumors can change how a gland works. Some conditions run in families, and age, weight, and lifestyle can play a role.
How doctors diagnose it
Doctors usually start with a health history and a physical exam. They often order blood tests to measure hormone levels and blood sugar, and sometimes imaging tests to look at a gland.
Treatment
Treatment depends on the condition. Many hormone problems are managed with medicine that replaces a missing hormone or blocks an overactive one. People with an underactive thyroid often take a daily hormone pill, while people with diabetes may use diet changes, oral medicines, or insulin. Some conditions need surgery.
When to see a doctor
Talk to a doctor if you have lasting tiredness, unexplained weight change, extreme thirst, or a lump in your neck. Seek care promptly for chest pain, confusion, severe weakness, or very high blood sugar symptoms, as these can be emergencies.
How a direct primary care or concierge doctor fits in
A direct primary care doctor charges a flat monthly fee instead of billing insurance, while a concierge doctor usually costs more and often works alongside insurance. Either one can order tests, start common treatments, and manage stable conditions, referring complex cases to an endocrinologist.
Common questions
Is diabetes always treated by an endocrinologist?
No. Many people with type 2 diabetes are managed well by a primary care doctor. A referral to an endocrinologist is common when blood sugar stays hard to control. It is also common when type 1 diabetes or a complex case is involved.
Are hormone problems lifelong?
Some are, such as conditions that need daily hormone replacement. Others can be treated or improve over time. Your doctor can explain what to expect with your specific condition.
Can diet and exercise fix a hormone problem?
Healthy habits help with conditions like type 2 diabetes and weight-related hormone changes. But many gland problems need medicine. Lifestyle changes alone usually cannot replace missing hormones.
What is a thyroid nodule?
It is a small lump in the thyroid gland in the neck. Most nodules are not cancer. But doctors often check them with an ultrasound and blood tests.
Sources
Medical Disclaimer
This content is for general educational and informational purposes only and is not medical advice. It is not a substitute for professional medical advice, diagnosis, or treatment, and reading it does not create a doctor-patient relationship. Always seek the advice of your physician or another qualified health provider with any questions about a medical condition, and never disregard or delay seeking professional advice because of something you read here. If you think you may have a medical emergency, call 911 (or your local emergency number) immediately.
