Papillary carcinoma refers to the growths observed under the microscope in pathological examination, and the common papillary carcinomas in clinic include papillary carcinoma of thyroid gland and intramammary duct papillary carcinoma of breast. Papillary thyroid cancer is a relatively common type of thyroid cancer, the cause of which is still unclear and may be related to heredity, environment and other factors. Generally there are no symptoms in early stage of papillary thyroid cancer, but in middle and late stage, there may be symptoms such as hoarseness, weakness in speech, difficulty in breathing, difficulty in swallowing and so on. Intraductal papillary carcinoma of the breast mainly occurs in the ducts of the breast, which is a special type of breast cancer and belongs to malignant tumor. Clinical symptoms of intraductal papillary carcinoma of breast mainly manifest as nipple discharge, breast lumps, etc. Once found, it needs to be surgically removed in time. The degree of malignancy of papillary carcinoma of thyroid is low, in order to avoid recurrence, patients should receive regular treatment and follow the doctor’s instructions for regular review. As for intraductal papillary carcinoma of breast, it will spread with the development of the disease, so patients need to consult the doctor in time and get treatment as early as possible.