Patient education
A lifetime in thyroid medicine, collected for you.
Thyroid.com helps patients understand thyroid conditions, testing, and treatment choices through the educational work of Richard B. Guttler, MD, FACP, FACE, ECNU.
The conditions
Understand your thyroid condition
Clear introductions to the conditions patients ask about most.
Thyroid Nodules
What nodules are, how ultrasound and biopsy are used, and when treatment may be needed.
Read the guideThyroid Cancer
Plain-language guidance on diagnosis, treatment, surveillance, and life after treatment.
Read the guideHypothyroidism
Understand common symptoms, thyroid testing, Hashimoto's disease, and hormone replacement.
Read the guideHyperthyroidism
Learn about Graves' disease, overactive thyroid symptoms, testing, and treatment choices.
Read the guideTesting and diagnosis
Understand how thyroid tests fit together.
No single test tells the whole story. The reason for testing, the results, imaging, symptoms, and medical history all help determine the next step.
Explore testing and diagnosisBlood tests
Thyroid hormone and antibody results are interpreted together with symptoms and medical history.
Read the patient guideUltrasound
Imaging describes thyroid structure, nodules, and nearby lymph nodes.
Read the patient guideBiopsy and cytopathology
Cell samples may help clarify whether a thyroid nodule needs monitoring or treatment.
Read the patient guideNuclear medicine testing
Selected imaging and uptake tests can help answer specific thyroid questions.
Read the patient guideLearn from Dr. Guttler
Lectures and educational resources.
Lecture material is preserved separately from current patient guidance, with its source, date, and review status made clear.
Browse resourcesThyroid RFA Ablation Master Course
A structured study guide to Dr. Guttler's lecture on office-based radiofrequency ablation for benign thyroid nodules.
Open the lecture study guideThe author
Richard B. Guttler, MD, FACP, FACE, ECNU
Dr. Guttler's work spans thyroid diagnosis, patient education, ultrasound, biopsy, and minimally invasive treatment. Thyroid.com brings his writing, lectures, and patient guides together to help people understand their thyroid health.