Abnormal heart rhythms, Palpitations: 18 Possible Causes
Advertisement
Let's see if we can figure out what's causing your symptoms.
Select additional symptoms and we'll narrow your results.

What causes abnormal heart rhythms and palpitations? 18 possible conditions

See a list of possible causes in order from the most common to the least.

1

Atrial Fibrillation and Flutter

Atrial fibrillation and atrial flutter are irregular heart rhythms that occur when the upper chambers of your heart (the atria) beat too fast.Atrial fibrillation can be sustained or can occur in bursts. It creates a...

Read more »

2

Paroxysmal Supraventricular Tachycardia (PSVT)

This condition is considered a medical emergency. Urgent care may be required.

People with paroxysmal supraventricular tachycardia (PVST) experience a faster-than-normal heart rate. Learn more about the symptoms and risk factors.

Read more »

3

Hyperthyroidism

The thyroid gland produces a hormone that controls how your cells use energy. Hyperthyroidism occurs when the body produces excessive amounts.

Read more »

4

High Blood Pressure Overview

High blood pressure (hypertension) increases your risk for heart attack, stroke, coronary heart disease, and other serious health problems.

Read more »

5

Mitral Valve Prolapse

In mitral valve prolapse the flaps of the heart's mitral valve do not close correctly, which can make blood leak from one chamber into another. Lifelong heart abnormalities likely contribute to this condition.

Read more »

6

Hypertensive Heart Disease

Hypertensive heart disease refers to heart conditions caused by high blood pressure. Possible signs of acute hypertension include sweating and chills.

Read more »

7

Drug Allergy Overview

This condition is considered a medical emergency. Urgent care may be required.

A drug allergy is an allergic reaction to a medication. Your immune system identifies the drug as foreign and acts to eliminate it from your body.

Read more »

8

Low Blood Sugar (Hypoglycemia)

This condition is considered a medical emergency. Urgent care may be required.

Also known as hypoglycemia, low blood sugar can be a dangerous condition. Hypoglycemia is rare in people who are not suffering from diabetes, the chronic disease that affects the body's ability to regulate blood sugar...

Read more »

9

Ventricular Septal Defects

A ventricular septal defect (VSD) is a hole between your heart's lower chambers, or ventricles. Read more about this condition.

Read more »

10

Congestive Heart Failure (CHF)

Congestive heart failure (CHF) is a chronic condition that affects the chambers of your heart. CHF refers to fluid buildup around your heart.

Read more »

11

The Deadly Potential of Digitalis: Digitalis Toxicity

This condition is considered a medical emergency. Urgent care may be required.

Digitalis toxicity occurs when you take too much digitalis, a medication used to treat heart conditions.

Read more »

12

Congestive (Dilated) Cardiomyopathy

Congestive cardiomyopathy, also known as dilated cardiomyopathy, is characterized by a weak primary pumping chamber in the heart. Your heart automatically attempts to correct for this inefficiency. In turn, thi...

Read more »

13

Ischemic Cardiomyopathy

Ischemic cardiomyopathy is a condition that occurs when the heart muscle is weakened due to insufficient blood flow to the heart's muscle. This inhibits the heart's ability to pump blood and can lead to heart failure.

Read more »

14

Panic Disorder

Panic disorder occurs when you live in fear of a panic attack. You may be having a panic attack when you feel sudden, overwhelming terror with no obvious cause.

Read more »

15

Septic Shock

This condition is considered a medical emergency. Urgent care may be required.

Septic shock is a complication of an infection. It can cause inflammation and could become life-threatening.

Read more »

16

Thyroid Storm

This condition is considered a medical emergency. Urgent care may be required.

Thyroid storm is a life-threatening condition that results from undertreated or untreated hyperthyroidism. Persistent sweating is one possible sign of thyroid storm.

Read more »

17

Myocarditis

Myocarditis is inflammation of the heart muscle. It is a rare condition that can be caused by any number of autoimmune diseases, viral, bacterial, or fungal infections, or parasites. When you have an infection or a...

Read more »

18

Alcoholic Cardiomyopathy

Alcoholic cardiomyopathy is a form of heart disease caused by alcohol abuse. Long-term alcohol abuse weakens and thins the heart muscle. The damaged muscle cannot pump blood as it should, which deprives the bod...

Read more »

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
Advertisement
Advertisement
Advertisement