What’s wrong with a newborn’s fast heartbeat?

The fast heartbeat of newborns is considered to be related to irritability, cold and fever, heart disease and other factors.
1. Irritability: newborns may have a fast heartbeat when they are overly irritable or crying, most of which is physiological, and can return to normal after their emotions are stabilized.
2. Cold and fever: newborns are relatively young and are easily affected by external factors. Inattention to care may lead to cold and fever, which affects the normal metabolism of the body and results in a fast heartbeat.
3. Heart disease: If a newborn baby has congenital heart disease, the heart may be affected and the heart may not function properly, so there may be a fast heartbeat.
Newborns appear fast heartbeat, do not rule out the existence of other reasons, can do further examination, with the doctor to clarify the cause, and then make symptomatic treatment.