Whether a thyroid nodule can be felt depends on the following aspects: 1. degree of obesity: if the patient is thin and has little subcutaneous fat, the nodule may be felt even if it is small, if the patient is fat, has a thick neck and thick subcutaneous fat, the nodule cannot be felt even if it is large; 2. size of the nodule: if the nodule is small, <8mm, it is difficult to be felt in the neck, while larger nodules are easier to feel; 3. hardness of the nodule. Solid nodules with calcification are easily palpable, and patients can feel something sticking to their hands when touching them; if the nodules are cystic or without calcification, they are not easily palpable. Whether a nodule requires surgery depends on the benignity or malignancy of the nodule, and the size of the nodule is not used as the basis for surgical treatment. If the nodule is likely to be malignant, surgery is required. If the nodule is benign and does not cause swallowing or respiratory dysfunction, surgery is not necessary and regular review is sufficient.