1. Smoking: Smoking will increase the risk of premature birth, low birth weight and infant death. Chemicals in tobacco can also enter the fetus through the blood, causing damage to its development.
2. Drinking alcohol: Drinking alcohol will increase the risk of miscarriage, premature delivery, fetal growth retardation and child development problems. Pregnant women are advised to avoid drinking alcohol completely.
3. Drug abuse: Drug abuse, including prescription drugs, over-the-counter drugs and illegal drugs, may have adverse effects on the fetus. Pregnant women should follow the doctor's advice and avoid using any drugs without the doctor's approval.
4. Unhealthy diet: An unbalanced diet may cause pregnant women to lack essential nutrients such as folic acid, iron and calcium. This may increase the risk of premature birth, low birth weight and developmental problems. Pregnant women are advised to maintain a balanced diet and take in enough nutrition.
5. Lack of exercise: Moderate exercise is beneficial to the health of pregnant women and fetuses. However, excessive strenuous exercise may increase the risk of miscarriage and premature delivery. It is suggested that pregnant women choose the exercise mode suitable for their physical condition and follow the doctor's advice.
6. Exposure to harmful substances: Exposure to harmful substances, such as toxic chemicals, radiation and some pathogens, may cause damage to the fetus. Pregnant women should try to avoid contact with these substances and follow relevant safety measures.
7. Excessive stress: Long-term or excessive stress may have a negative impact on the health of pregnant women and fetuses. It is suggested that pregnant women learn to cope with stress effectively and maintain a good psychological state. Every pregnant woman's situation is unique. If you have any specific health problems or concerns, you'd better consult your doctor for personalized advice and guidance.