What causes a faster heartbeat during pregnancy?

In a family, people pay meticulous attention to pregnant women, from eating, drinking and having fun to every move, they are very careful, for fear that something might go wrong. Some pregnant women often notice signals from their bodies and feel that they are different from before. For example, they feel their heartbeat quickens for a period of time after pregnancy. Is this normal? What causes an increased heart rate during pregnancy? Let’s take a look at the analysis below.

Starting from the 6th week of pregnancy, the pregnant woman's blood volume will gradually increase. After the 32nd week of pregnancy, the blood volume can increase by 40% compared to the original, reaching its peak at 32-34 weeks of pregnancy. The heart is burdened by the increase in blood volume, so the heart rate naturally speeds up, but generally not exceeding 100 beats/minute.

Blood volume is about 7% to 8% of body weight. For example, a 50 kg person has a blood volume of about 3.5 to 4 liters, or 3500 to 4000 ml. As weight increases after pregnancy, blood volume also increases, so the burden on the heart will increase. During pregnancy, the heart rate of a normal pregnant woman may be 10 to 15 beats per minute faster than usual. Some pregnant women experience paroxysmal tachycardia during activity or after meals, which improves after rest.

If you have heart disease, myocarditis, arrhythmia and other diseases before pregnancy, the burden will be increased after pregnancy, making the symptoms more obvious. Therefore, when chest tightness occurs, it is necessary to distinguish whether it is a physiological phenomenon after pregnancy or an organic disease of the heart. A doctor's careful examination is required. In addition, electrocardiogram, echocardiography and other examinations can also be done to rule out abnormalities in heart function.

It turns out that this is why your heart rate speeds up during pregnancy. A pregnant woman's body will inevitably be different from that of an ordinary person because she has a baby in her belly. What the above statement means is that just like carrying a burden in the body, the heartbeat will naturally speed up. Therefore, pregnant women do not need to be too nervous when encountering this situation. Just pay more attention to rest and calm down, and there will be no problem.