The difference between water breaking and redness is mainly manifested in the definition, clinical manifestations, and principles of treatment. 1. Definition: Water breaking refers to rupture of fetal membranes, which is mostly caused by reproductive tract infection, elevated pressure in the amniotic cavity, uneven pressure on the fetal membranes, trauma and other reasons. Redness is a small amount of bleeding caused by the rupture of capillaries after the separation of the fetal membranes from the uterine wall near the endocervical os, accompanied by mucus secreted by the cervix. 2. Clinical manifestations: water breakage is characterized by sudden onset of vaginal effusion, increased vaginal effusion when abdominal pressure is increased, vaginal examination fails to detect the amniotic sac, and the amount of vaginal effusion increases when the fetal head is pushed upward, and fetal fat is visible. Diagnosis can be assisted by ultrasonography and pH (acidity/alkalinity) measurement of the vaginal fluid. Redness refers to a small amount of vaginal bleeding before labor, which may be accompanied by cervical mucus, and is a reliable indicator that labor is about to start. 3. Principles of treatment: If the water breaks at term, the pregnancy should be terminated in time; if there are surgical indications, cesarean section should be performed in time; if there are no clear surgical indications, labor can be induced within 2-12 hours of rupture of membranes. Those who do not have full-term rupture of membranes should formulate a treatment plan according to the gestational week, maternal and fetal conditions and the local level of neonatal care. As long as the fetal heartbeat and fetal movement are good, it can be temporarily observed, and when regular abdominal pain occurs, it can be timely to go to the hospital for consultation. Regardless of whether a pregnant woman experiences water breakage or redness, she should actively consult a doctor and be observed and treated.