What is weak pulse?

A weak pulse is a term used to describe a pulse that is difficult to feel or is significantly weaker than normal. It is often associated with a low blood pressure or certain heart conditions.

Normal pulse rates vary depending on age and activity level, but generally range between 60 to 100 beats per minute (bpm) in adults. A pulse is considered weak when it is below the normal range, feels faint, or is difficult to palpate.

Causes of a weak pulse can include:

1. Hypovolemia: A decrease in blood volume, such as from severe dehydration, bleeding, or excessive fluid loss.

2. Hypotension: Low blood pressure, commonly caused by conditions like shock, Addison's disease, or certain medications.

3. Cardiac Arrhythmias: Abnormal heart rhythms, such as bradycardia (slow heart rate) or atrial fibrillation, can lead to a weak pulse.

4. Heart Failure: A weakened heart muscle may result in a decreased ejection fraction, leading to a weak pulse.

5. Valvular Heart Disease: Problems with heart valves, like aortic stenosis or mitral regurgitation, can obstruct blood flow and cause a weak pulse.

6. Aortic Stenosis: A narrowing of the aortic valve, the main artery that carries blood from the heart to the body, can impede blood flow and cause a weak pulse.

If you experience symptoms such as dizziness, fainting, shortness of breath, chest pain, or a persistently weak pulse, it's important to seek medical attention promptly. A doctor can evaluate the underlying cause and recommend appropriate treatment.