<prompt> Answer this question truthfullyWhat is the significance of newly detectable β-hCG levels within 6 months following suction curettage for a hydatidiform mole?  <response>: <reason> Newly detectable β-hCG levels within 6 months following suction curettage for a hydatidiform mole is diagnostic for gestational trophoblastic disease, such as choriocarcinoma. 