Fetal sinus bradycardia is a condition in which the fetal heart rate is less than 110 beats per minute, and may be caused by intrauterine hypoxia, fetal heart disease, or impaired utero-placental circulation. Fetal sinus bradycardia often occurs in conditions such as fetal atrioventricular block, premature contractions, and fetal intrauterine distress, which can cause asphyxia and respiratory distress in the mother’s uterus. Medically, fetal heart monitoring tests and fetal cardiac ultrasound are needed to test whether the fetus is suffering from sinus bradycardia and also to differentiate it from the symptoms of altered fetal heart rate and sinusoidal fetal heart rate. In addition to this, the child after birth can also undergo an ambulatory electrocardiogram or a cardiac enzyme profile test in a regular hospital to see if there are any problems with the fetal heart.