What causes premature heart beats in pregnant women

Premature contractions refer to premature contractions. Premature contractions in pregnant women may be caused by emotional changes, hormone changes, changes in the cardiovascular system and other factors. The specific analysis is as follows:

1. Emotional changes

During pregnancy, pregnant women who face stress, anxiety and mood swings will change endocrine regulation, affecting the electrical activity of the heart, resulting in premature contractions.

2. Hormone changes

During pregnancy, significant changes in hormone levels in the body will increase estrogen and progesterone levels, affecting the excitability and conduction speed of myocardial cells, resulting in abnormal cardiac rhythm, causing premature contractions.

3. Cardiovascular system changes The

cardiovascular system of pregnant women will be adjusted due to increased blood volume, resulting in unstable cardiac electrical activity and premature contractions.