Pseudocontractions, also known as delayed contractions, are irregular contractions that occur due to the increased sensitivity of the uterine muscles during pregnancy. The biggest difference between pseudo contractions and true contractions is the lack of regularity, inconsistent frequency of contractions, short duration, long intervals, sometimes strong and sometimes weak contractions, and not accompanied by short contractions of the cervical canal and dilatation of the uterine opening. Pseudo contractions can be relieved by rest or changing position, and are physiological changes. Starting from 28 weeks of pregnancy, pregnant women often have pseudo contractions, which can be triggered by a variety of factors, such as emotional excitement, overexertion, etc. Pregnant women will feel a burst of abdominal tightening and hardening, but no abdominal pain. Before delivery, due to the lower part of the uterus being stimulated by the pulling of the descending fetal head, pseudo contractions will become more and more frequent, but without obvious regularity, short duration and weak degree. True contractions, i.e. contractions in labor, are more regular and intense, accompanied by cervical enlargement, fetal head descent, and possibly a small amount of vaginal bleeding. It may be difficult for pregnant women to distinguish between false contractions and true contractions on their own, so if necessary, they can consult an obstetrician and gynecologist to identify them.