Premature birth mentioned here refers to premature birth between 28-37 weeks of pregnancy, that is, premature birth. The vitality of premature babies is not strong enough, or they may have some bad endings. Therefore, pregnant mothers must be careful, the baby will report to you in advance. Pregnant mothers prone to premature birth 1. Too young (under 18 years old) or too old (over 35 years old). 2. Too short (less than 150 cm) or too light (less than 45 kg). 3. I have always had the habit of smoking and drinking. 4. Have a history of miscarriage or premature birth. 5. Suffering from gestational hypertension,