Low progesterone value can be caused by a variety of reasons, and its treatment measures are as follows: 1. If the embryo is abnormal, progesterone supplementation is of little significance; 2. If luteal insufficiency is present, progesterone supplementation is needed, such as oral medication, intramuscular medication, and vaginal medication; 3. If low progesterone value caused by ovarian lutectomy or assisted reproductive technology pregnancy received in early pregnancy, progesterone supplementation is needed; 4. Low progesterone value caused by detection means, laboratory, and individual differences, progesterone supplementation is of no practical significance.