Many people feel their heartbeat in their stomach and wonder if it’s normal. This article explains why this sensation occurs and when it might signal a need for medical attention.
Understanding the Abdominal Aorta
The sensation of a heartbeat in the stomach typically originates from the abdominal aorta. This large artery extends from the heart, down through the chest, and into the abdomen. Its primary function is to transport oxygen-rich blood from the heart to the abdominal organs, pelvis, and lower limbs.
The abdominal aorta is situated deep within the abdomen, slightly to the left of the midline and in front of the spine. Because of its size and the high-pressure blood flow through it, the pulsation of this artery can sometimes be felt. In some individuals, particularly those with less abdominal fat, the pulsation might even be visible.
Everyday Reasons for Feeling Your Pulse
Feeling a pulse in your stomach is often a normal and harmless experience, especially when the sensation is fleeting. One common reason is simply lying down, particularly if you are on your back with your knees raised. In this position, the abdominal aorta can be closer to the surface, making its pulsations more perceptible.
After eating, your body directs more blood to the stomach and small intestine to aid in digestion and nutrient absorption. This increased blood flow can make the pulse in your abdominal aorta more noticeable. Therefore, experiencing a pulsing sensation after a meal is generally considered normal.
Pregnancy can also lead to a more pronounced feeling of a pulse in the abdomen. During pregnancy, the body’s blood volume significantly increases, making the abdominal aorta’s pulsations more apparent. While this sensation might be mistaken for the baby’s heartbeat, it is actually the mother’s own abdominal aortic pulse.
Individuals with less body fat may more readily feel their abdominal aorta’s pulse, as less tissue insulates the artery. Anxiety can also heighten awareness of bodily sensations, including the abdominal pulse, due to the body’s “fight or flight” response increasing heart rate.
Signs It’s Time to Talk to a Doctor
While often benign, a pulsing sensation in the stomach can sometimes indicate a more serious underlying condition, such as an abdominal aortic aneurysm (AAA). An AAA occurs when a section of the abdominal aorta weakens and bulges outward. Most aneurysms do not cause symptoms until they become large or are close to rupturing.
It is important to seek medical attention if the pulsing sensation is accompanied by specific symptoms. These include severe, constant pain in the abdomen, lower back, or side. A noticeable, throbbing mass in the abdomen, especially near the navel, also warrants a medical evaluation.
Other concerning symptoms include dizziness or fainting, which may indicate a blood pressure drop. Coldness or numbness in the legs or feet could signal a blood clot blocking blood flow. A family history of abdominal aortic aneurysms also increases risk, making medical consultation advisable.