Myth 1: Healthy couples do not need pre-pregnancy check-ups
1. Misunderstanding: Thinking that there is no abnormality in the body means fertility health, and pregnancy testing is a "superfluous move".
2. Scientific facts
·Hidden disease risk: Early symptoms of diseases such as hypothyroidism and polycystic ovary syndrome are hidden, but they can significantly increase the risk of abortion (thyroid problems can lead to an increase in spontaneous abortion rates).
·Male factors account for a high proportion: About 30%-40% of infertility is caused by male factors (such as oligospermia, high sperm DNA fragmentation rate), and male fertility cannot be judged by appearance.
·The necessity of screening for carriers of genetic diseases: Even if there is no family history, both spouses may carry the same recessive disease-causing gene (such as the GJB2 deafness gene), and the risk of developing the disease in future generations reaches 25%.
3. Correct approach: Both couples will jointly complete pre-pregnancy examinations, including hormone levels, semen analysis, and carrier screening (Recommended population: all couples of childbearing age).

Myth 2: To prepare for pregnancy, you only need to quit smoking and alcohol
1. Misunderstanding: As long as you quit smoking and alcohol, other living habits do not need to be adjusted.
2. Scientific facts
·Effect of diet and weightLow BMI risk (<18.5kg/m2): Preterm labor rate increased by 1.5 times, and the risk of low neonatal weight increased.
·High-sugar and high-fat diet: disrupts endocrine and reduces egg quality.
·Hidden harm caused by staying up lateleads to abnormal melatonin secretion, which affects follicular development and sperm activity.
Environmental teratogens: Chemical pollutants (such as bisphenol A) and radiation exposure can damage reproductive cells.
3. Correct practice
·Maintain a BMI of 18.5-24.0kg/m²
·Regulate work and rest (go to sleep before 23 o'clock)
·Avoid contact with newly renovated environments, pesticides, etc.

1. Misunderstandings
Plan A: Increase the number of roommates and "spread the net widely"
Plan B: Long-term abstinence to "recharge your strength".
2. Scientific facts
·Sperm quality curve: Sperm vitality and shape are excellent when abstinence for 2-3 days, and sperm death rate increases when abstinence for more than 7 days.
·Accuracy of the ovulation period: There are only 6 days of pregnancy windows per month (5 days before ovulation to the day of ovulation), and it will be invalid if missed.
·Impact of psychological stress: Excessive attention to the same room can easily cause anxiety and inhibit the function of the hypothalamic-pituitary-gonad axis.
3. Correct practice
·Non-ovulatory period: regular intercourse 2-3 times a week to maintain sperm activity
·Ovulation period (about 14 days before menstruation): sharing the same room every other day.

Myth 4: Male age does not affect fertility
1. Misunderstanding: Only women need to pay attention to their childbearing age, and men are "fertile throughout their lives."
2. Scientific facts
·Sperm DNA damage: After men ≥40 years old, the sperm DNA fragmentation rate (DFI) increases significantly, leading to an increased risk of embryonic and fetal arrest.
·Health risks for future generations
Increased risk of autosomal dominant mutations (e.g. achondroplasia)
The incidence of schizophrenia and autism in offspring increases.
·Sexual dysfunction: Testosterone levels decrease year by year, affecting sexual desire and erectile function.
3. Correct approach: Men should also grasp the golden childbearing age (25-35 years old), and elderly men should test semen DFI before preparing for pregnancy.

Myth 5: IVF is only suitable for elderly women
1. Misunderstanding: Young couples who cannot conceive only need to "wait a while", and test tubes are the last choice.
2. Scientific facts
Broadness of indications: Test tube technology is suitable for
·Fallopian tube obstruction, endometriosis
·Severe oligospermia
·Recurrent abortion (PGT-A screening of embryonic chromosomes is required).
3. Young patients also need
·Early intervention is needed in young people with premature ovarian failure (AMH 1.1ng/ml) and azoospermia after cryptorchidism surgery.
Cost of treatment delays: Women's ovarian reserve declines sharply after age 35
4. Correct approach: Seek medical treatment if you fail to prepare for a pregnancy for one year (6 months for those over 35 years old) to avoid missing the appropriate treatment opportunity.

Core principles of scientific pregnancy preparation
·Double participation: Childbirth is the coordination of the responsibilities of both parties, and inspection and conditioning need to be synchronized by couples.
·Early intervention avoids delays: fertility assessment and genetic screening are pre-positioned to reduce the risk of birth defects.
Reasonable applicationoftechnology: Assisted reproduction is a scientific means rather than the "last straw"

The essence of preparing for pregnancy is to allow life to be born in an excellent physiological environment. Avoiding misunderstandings is not about creating anxiety, but replacing blind attempts with scientific cognition. When the laws of nature and modern medicine work together,"good pregnancy" will eventually come as scheduled.