What fetal position corresponds to the baby's heartbeat being heard in the lower left abdomen during late pregnancy?

In late pregnancy, a fetal heartbeat detected in the lower left abdomen usually indicates a left occiput anterior (LOA) position. The detailed explanation is as follows:

During late pregnancy, the fetal position becomes fixed, and accordingly, the location of the fetal heartbeat also stabilizes. At this stage, the fetal position can be roughly determined through fetal heart monitoring. Generally, if the fetal heartbeat is heard in the lower left abdomen, it suggests that the fetus's back is positioned against the mother’s lower left abdomen, indicating a left occiput anterior (LOA) position, which is considered a normal fetal presentation. However, determining fetal position based solely on the location of the fetal heartbeat is not highly accurate. It is recommended that patients undergo further evaluation under a physician’s guidance using abdominal palpation, ultrasound examination, or other diagnostic methods to confirm the fetal position.

In late pregnancy, if abnormal fetal positions such as transverse lie or occiput posterior position are detected, active correction should be pursued under the supervision of an obstetrician-gynecologist.