Feeling your heart race unexpectedly, experiencing sudden weight loss despite eating normally, or noticing persistent nervousness and heat intolerance can be unsettling. Hyperthyroidism occurs when the thyroid gland produces too much hormone, affecting metabolism, heart function, and multiple body systems. At Prima Medicine, hyperthyroidism care is grounded in deep endocrinology expertise, careful evaluation, and a highly personalized approach.
Hyperthyroidism treatment at Prima Medicine is led by Dr. Janice E. McMillan, MD, a board-certified endocrinologist with extensive academic and clinical experience. As part of a physician-directed, multispecialty practice, Prima Medicine provides coordinated endocrine care across all locations, allowing patients throughout Northern Virginia to access consistent, high-level thyroid management.
What Is Hyperthyroidism?
Hyperthyroidism results from excess thyroid hormone production, which accelerates metabolic processes throughout the body. The thyroid gland, located in the front of the neck, normally regulates metabolism, energy levels, heart rate, and temperature. When it becomes overactive, it can place strain on the heart, bones, and nervous system. Endocrinology-focused care is essential because even moderate hormone excess can affect cardiovascular health, bone density, and overall wellness.
Causes of Hyperthyroidism
Several conditions can lead to hyperthyroidism. Graves’ disease is the most common cause and occurs when the immune system stimulates the thyroid to produce excess hormone. This autoimmune condition often leads to persistent symptoms and, in some cases, eye-related changes that require specialized monitoring.
Other causes include toxic nodular goiter, thyroiditis (thyroid inflammation), and excessive iodine intake. Endocrinology evaluation helps identify the underlying cause and guide appropriate treatment.
Symptoms of Hyperthyroidism
Symptoms develop when metabolism becomes overactive and may include:
- Unintended weight loss
- Rapid or irregular heartbeat
- Increased appetite
- Nervousness or anxiety
- Tremors
- Heat intolerance
- Excessive sweating
- Fatigue
- Difficulty sleeping
- Hair thinning
- Changes in menstrual patterns
Some patients with Graves’ disease may also experience eye symptoms such as bulging, irritation, or vision changes. Because these symptoms can mimic other conditions or develop gradually, endocrinology expertise plays a key role in accurate diagnosis and appropriate management.
Hyperthyroidism Evaluation and Treatment
Hyperthyroidism evaluation involves comprehensive thyroid hormone panels, antibody testing when indicated, and imaging such as thyroid ultrasound or radioactive iodine uptake studies to determine the cause and severity. Dr. McMillan reviews lab results alongside symptom patterns and overall health to develop an individualized treatment plan.
Treatment options may include antithyroid medications to reduce hormone production, radioactive iodine therapy to decrease thyroid activity, or, in some cases, surgical intervention. Beta-blockers may be used to manage cardiovascular symptoms while the underlying treatment takes effect.
The focus is on long-term hormone stability, symptom relief, and prevention of complications such as heart rhythm abnormalities or bone loss.
Why Choose Prima Medicine for Hyperthyroidism Treatment?
Dr. Janice E. McMillan brings deep endocrinology expertise to Prima Medicine, shaped by years of academic medicine and complex patient care. She previously served as an Assistant Professor and Clinical Endocrinologist at West Virginia University, where she managed diverse thyroid and metabolic disorders while mentoring medical trainees. Her fellowship training in Clinical Endocrinology and Metabolism at the University of Virginia, where she served as Chief Fellow, reflects advanced specialization and leadership in endocrine care. As a published author in peer-reviewed endocrinology journals, Dr. McMillan combines evidence-based medicine with a thoughtful, patient-focused approach that prioritizes clarity, continuity, and trust.
Frequently Asked Questions
Comprehensive Hyperthyroidism Care With Endocrinology Expertise
Hyperthyroidism requires careful evaluation and ongoing specialist care. Dr. McMillan provides endocrinology-focused hyperthyroidism management at Prima Medicine. To discuss symptoms, referrals, or next steps, contact Prima Medicine at (703) 870-3750 or book an appointment online at one of our four locations: Fairfax, South Riding, Merrifield, or Tysons.
