What are the reasons for being able to get pregnant but unable to maintain the pregnancy?

Generally, being able to conceive but failing to maintain the pregnancy may be caused by excessive physical strain during pregnancy, high levels of psychological stress, luteal phase deficiency, endometrial polyps, hypothyroidism, and other factors. It is recommended to seek medical attention promptly, identify the underlying cause, and receive appropriate treatment under a doctor's guidance. The specific analysis is as follows:

1. Excessive physical strain during pregnancy: Overexertion—either physically or mentally—in early pregnancy can increase bodily stress and lead to threatened miscarriage. Adjust daily routines immediately by avoiding heavy physical labor and staying up late, ensuring eight hours of sleep per day, and minimizing prolonged standing or sitting.

2. Excessive psychological stress: Prolonged anxiety and tension can disrupt endocrine function, affecting the stability of embryo implantation. Relax daily through meditation or walking, communicate with family members to relieve mental burden, and seek professional psychological counseling when necessary.

3. Luteal phase deficiency: Insufficient progesterone secretion by the corpus luteum after ovulation fails to support embryonic development. Follow medical advice to take medications such as progesterone capsules, dydrogesterone tablets, or medroxyprogesterone acetate tablets to supplement progesterone and sustain the pregnancy, with regular monitoring of hormone levels.

4. Endometrial polyps: Polyps occupying uterine cavity space or impairing endometrial blood supply can hinder embryonic development. Prior to pregnancy, hysteroscopic polypectomy can be performed to remove lesions, improve the uterine environment, and provide favorable conditions for embryo implantation.

5. Hypothyroidism: Inadequate thyroid hormone secretion affects metabolism and embryonic development. Follow medical instructions to take medications such as levothyroxine sodium tablets, thyroid extract tablets, or levothyroxine tablets, and regulate thyroid function to normal levels before attempting conception.

Maintain a balanced diet in daily life, consume more foods rich in protein and vitamins, and avoid spicy or irritating foods. Supplement with folic acid during preconception and early pregnancy, and avoid tobacco, alcohol, and exposure to radiation. Regular pre-pregnancy checkups and early prenatal examinations are essential to detect and address issues promptly.