Fetal heart rate of 110-160 beats/min at 13 weeks is normal. Fetal heart rate at 13 weeks is between 110 and 160 beats/min, as long as it is within this range at the time of the checkup. If, at the time of the checkup, it is found that the fetal heart rate is lower than 110 beats/min or higher than 160 beats/min, it is usually necessary to further check whether there is any abnormality in the fetal heart. At this gestational week, heart rate abnormalities are mostly due to congenital heart disease in the fetus. Problems with neurological development can also cause fetal heart rate abnormalities and require prompt medical attention to find out the real cause and provide targeted treatment. The standard fetal heart rate in the 13th week of pregnancy is between 110 and 160 beats per minute, if it is not within this range, it should be promptly and actively treated under the arrangement of professional doctors in regular hospitals.