Whether thyroid nodule 4b surgery is minimally invasive or open surgery should be decided based on your condition and cannot be generalized. If the nodule is large or has metastasis, open surgical treatment may be considered and consultation with a physician is recommended. If the nodule is small and benign as well as the patient is in poor health or has a combination of chronic underlying diseases that are not suitable for open surgery, then minimally invasive surgical treatment can be considered. However, when the nodule is large or metastasis occurs, open surgery should be considered. At this time, minimally invasive surgical treatment may not remove the lesion completely, and open surgical treatment can completely remove the surrounding tissues, preventing the nodule from recurring and improving the patient’s quality of life. If you are suffering from thyroid nodule 4b, you need to consult a doctor as soon as possible for relevant examinations and choose the appropriate treatment for yourself under the guidance of the doctor.