Is miscarriage caused by body temperature?

Patient's question:

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This is my daily temperature from September 10th to October 9th. I don’t know if there’s any issue. On June 16th, I naturally miscarried at 46 days of pregnancy. I started spotting on the 28th day and only began taking progesterone to try to save the pregnancy on the 42nd day, but it didn’t work.

Doctor's answer:

1. Contraception should be used within six months after a miscarriage, and pregnancy should be avoided until six months have passed to reduce the risk of future miscarriages.
2. Genetic testing should be conducted, with both partners undergoing chromosome examinations.
3. Blood type identification should include the Rh blood group system.
4. If there is cervical incompetence, cervical cerclage surgery can be performed.
5. The duration of medication for luteal phase defect treatment should exceed the previous pregnancy term (e.g., if the previous miscarriage occurred at 3 months of gestation, the treatment period should not be shorter than 3 months of pregnancy).
6. If there is hypothyroidism, thyroid function must be normalized before pregnancy, and antithyroid medication should be taken during pregnancy.
7. Rest, avoid sexual activity (especially during the pregnancy period after the previous miscarriage), maintain emotional stability, and lead a regular and disciplined lifestyle.
8. The male partner should undergo a reproductive system examination. If there is seminal infection, treatment must be completed before the wife becomes pregnant.
9. Avoid exposure to toxic substances and radiation.
10. Weekly net computer work hours should be less than 20 hours.
11. Rest for four weeks after a miscarriage. A miscarriage is an unfortunate event for the pregnant woman, but in a sense, it is also a way for humans to continuously optimize themselves and a selection process for new life. The law of survival of the fittest is the rule of nature. Over 50% of miscarriages are due to chromosomal abnormalities in fetuses, and early miscarriages can reduce the birth of malformed infants. Therefore, before attempting to prevent miscarriage, it is important to identify the factors or causes as much as possible, rather than blindly trying to prevent it.