Can a thyroid nodule of grade 3 be detected during a physical examination?

Jul 22, 2025 Source: Cainiu Health
Dr. Yang Chuanjia
Introduction
Under normal circumstances, thyroid nodules classified as level 3 can be detected during physical examinations, and routine thyroid ultrasound examinations can usually identify such nodules. In daily life, maintaining thyroid health involves participating regularly in physical check-ups that include thyroid screening, maintaining a regular sleep schedule, eating a balanced diet, avoiding excessive fatigue and mental stress, and supporting thyroid function through healthy lifestyle habits.

Generally, thyroid nodules classified as category III can be detected during physical examinations, and routine thyroid ultrasound examinations are usually capable of identifying such nodules. Detailed analysis is as follows:

Thyroid category III nodules are one classification within thyroid nodule grading systems and are mostly benign lesions, typically of a certain size. Ultrasound examinations targeting the thyroid during physical exams can clearly display the morphology and structure of the thyroid gland, accurately identifying characteristics such as the size, location, and boundaries of category III nodules. This makes ultrasound a common and effective method for detecting such nodules.

If a thyroid category III nodule is small in size, more detailed observation during ultrasound examination may be required for detection. However, as long as the physical examination includes a thyroid ultrasound component, these nodules typically won't be missed. Additionally, simple palpation during physical exams may not accurately determine the nodule classification; ultrasound examination results are necessary to precisely identify the nodule's category.

In daily life, maintaining thyroid health can involve regular participation in physical exams that include thyroid screening, maintaining regular sleep patterns, eating a balanced diet, avoiding excessive fatigue and mental stress, and promoting good thyroid function through healthy lifestyle habits, thereby reducing the risk of developing or progressing nodules.