Threatened miscarriage, as the name suggests, refers to signs indicating a potential miscarriage. Whether a curettage is necessary in cases of threatened miscarriage mainly depends on the pregnancy outcome. For threatened miscarriage, treatment is chosen based on the patient's wishes. If the patient desires to continue the pregnancy and try to preserve it, medication can be used initially for conservation. However, if a woman experiencing threatened miscarriage does not wish to continue the pregnancy, she can opt for artificial intervention to induce the miscarriage. Miscarriage can be induced through oral medication or through a curettage procedure. Thus, curettage is not necessarily required for a threatened miscarriage, and even if the pregnancy is to be terminated, medication can be used as an alternative. Therefore, there is no inevitable connection between threatened miscarriage and curettage.