Microscopic thyroid carcinoma refers to lesions with a diameter of ≤1 cm, and poor dorsal peritoneal continuity refers to possible infiltration of the dorsal peritoneum. Microscopic thyroid carcinoma is defined as a thyroid cancer with a small lesion size of ≤1 cm in diameter. papillary carcinoma is the most common type of microscopic thyroid carcinoma, and a few microscopic carcinomas may be follicular, medullary, or undifferentiated carcinomas. Compared with other thyroid cancers, micropapillary carcinoma can be treated by surgery or ablation and has a better prognosis. Poor continuity of the dorsal peritoneum is a description of the peritoneum of the thyroid gland in ultrasonography, which indicates that there may be invasion of the dorsal peritoneum of the thyroid gland, or the continuity of the peritoneum may look poor due to the angle of the examination and the clarity of the instrument, etc. Further examination should be performed to clarify whether there is peritoneal infiltration. It is recommended that the patient consult with a specialist, make a comprehensive judgment based on other descriptions in the examination report, and follow the doctor’s instructions for further examination and treatment.