Generally, thyroid cysts do not affect pregnancy, and in some cases they can be self-absorbed without treatment. However, it is not recommended that patients undergoing treatment become pregnant to avoid affecting the development of the fetus. Thyroid cysts are a type of thyroid nodule and are benign cystic lesions. Generally, thyroid cysts do not affect pregnancy, the disease is only morphologically altered, and some of the cysts are small in size, and there are no obvious clinical symptoms, malignant signs, no treatment is needed, and they can be absorbed by themselves in a short period of time, and close clinical observation can be carried out. However, for patients with large thyroid cysts and obvious symptoms who need to take treatment measures such as surgery, drug sclerosis, radiofrequency ablation, etc., pregnancy is usually not recommended, mainly because the medication and radiation during the treatment period may adversely affect the growth and development of the fetus, and to a certain extent, increase the chances of miscarriage and fetal ejection during pregnancy. All in all, it is recommended that both partners prepare for pregnancy when their physical condition permits, and patients should visit the hospital for follow-up appointments on a regular basis.