Can Steroids Cause Heart Attack?

Steroids can play an important role in medicine, but they also come with risks that people should not ignore. Yes, steroids can increase the risk of heart attack, especially when people use high doses, misuse them, or take them for long periods. Both anabolic steroids and corticosteroids affect heart health in different ways, and understanding these effects helps people make informed choices.

Steroids can disrupt normal heart function by raising blood pressure, changing cholesterol levels, and straining the heart muscle. Over time, these changes can lead to serious problems, including heart disease and heart attack. Even lower doses, when taken for long periods, have been linked to higher risks of heart problems.

Definition of Symptom

A symptom is a physical or mental change that signals something may be wrong in the body. It is what a person experiences, which may or may not match what a doctor finds during an exam.

Unlike a sign, which can be measured or observed, a symptom is reported by the person. For example, chest pain is a symptom, while an irregular heartbeat seen on an ECG is a sign. Symptoms related to heart problems can include:

  • Chest pain or pressure
  • Shortness of breath
  • Dizziness or fainting
  • Rapid or irregular heartbeat

Doctors use tools to better understand these symptoms. An ECG records the heart’s electrical activity and can show abnormal rhythms. An echocardiogram uses sound waves to create images of the heart’s structure and function, helping detect damage or strain.

Some symptoms may be vague, such as fatigue or swelling in the legs. These signs can still point to stress on the heart, especially if steroids affect blood pressure, cholesterol, or fluid balance. A patient may describe chest tightness, while the ECG or echocardiogram provides evidence of how the heart is working.

Possible Causes/Diseases Condition

Steroid use can affect the heart and blood vessels in different ways. Both anabolic-androgenic steroids (AAS) and corticosteroids can raise the risk of conditions linked to heart attack.

Anabolic steroids change cholesterol levels by lowering HDL (good cholesterol) and raising LDL (bad cholesterol). This imbalance encourages plaque buildup in arteries, which narrows blood flow and increases the chance of a blockage.

Steroid use can also lead to high blood pressure. Higher pressure puts extra strain on the heart and arteries, making them more vulnerable to damage. Over time, this can contribute to heart disease.

Other corticosteroids do not act the same way as anabolic steroids, but they can still affect the heart and blood vessels. They may cause fluid retention, raise blood pressure, and change cholesterol levels, which together increase heart strain. Common conditions linked with steroid use include:

  • Arrhythmia (irregular heartbeat)
  • Cardiomyopathy (weakened heart muscle)
  • Coronary artery disease
  • Blood clots
Steroid TypePossible Effects on Heart
Anabolic-Androgenic SteroidsPlaque buildup, high blood pressure, arrhythmia, cardiomyopathy
CorticosteroidsFluid retention, elevated blood pressure, changes in cholesterol, heart rate changes

Not everyone experiences these effects, but long-term or high-dose use raises the chance of heart problems.

Other Non-Disease Causes

Steroid use can affect heart health even in people without existing disease. Factors such as blood pressure changes, fluid retention, and altered hormone levels add strain to the heart and blood vessels. Both medical users and those taking steroids for performance or appearance may experience these effects.

Athletes and bodybuilders often use anabolic steroids to increase muscle mass, strength, and muscle growth. While these changes may improve athletic performance, they also increase the body’s demand for oxygen and blood flow. This extra workload can raise the risk of high blood pressure and related heart strain.

Steroids can also disrupt normal testosterone balance. Artificially high levels may thicken the heart muscle, reduce flexibility of blood vessels, and impair circulation. Combined with intense exercise, this can increase the chance of chest pain or even a heart event. Some non-disease effects can be summarized in the table below:

EffectImpact on Heart
HypertensionIncreases workload on the heart
Fluid RetentionRaises blood pressure and stresses circulation
Hormonal ChangesAlters heart muscle structure
Increased Muscle MassDemands more oxygen and blood supply

Even low or moderate steroid use may create these risks over time. Steroids can increase strain on the heart, even in people without pre-existing heart disease.

How It Causes the Symptom

Steroids mainly affect the heart by changing cholesterol levels. They raise LDL (bad cholesterol) and lower HDL (good cholesterol). This imbalance increases the chance of plaque buildup inside blood vessels. Plaque buildup narrows arteries and makes it harder for blood to flow. Reduced blood supply to the heart muscle raises the risk of chest pain or a heart attack.

Steroids can also raise blood pressure. Higher pressure forces the heart to work harder, which may thicken the heart wall and reduce how well it works. This can lead to irregular heart rhythms and weaker pumping ability.

Steroids may also make platelets stick together more easily, which increases the chance of forming blood clots. A sudden clot can block a narrowed artery and cause a heart attack. Key factors that influence risk include:

  • Dosage: Higher doses put more strain on the heart.
  • Duration: Longer use worsens cholesterol levels and vessel damage.
  • Inflammation: While steroids reduce inflammation in some tissues, they may still cause harmful changes in the heart and blood vessels.

The combination of poor cholesterol balance, high blood pressure, and clotting changes explains why steroid use can raise the risk of heart problems.

Possible Complications

Steroid use can harm the heart and blood vessels in several ways. Both anabolic and corticosteroid use have been linked to changes that may increase the risk of heart disease and other heart problems.

One concern is the development of plaque buildup and coronary artery disease, which can limit blood flow to the heart. This reduced circulation may lead to chest pain or even a heart attack. Steroids can also increase the chance of blood clots. A clot may block a coronary artery and cause a heart attack. In some cases, this can lead to sudden and severe heart damage.

Changes in heart structure are another risk. Some users may develop a thickened or stiff heart muscle, which can weaken the heart over time. These changes may lead to a weakened heart and raise the chance of sudden heart problems.

Steroids can also disrupt the heart’s electrical activity, leading to arrhythmias. These irregular rhythms can cause palpitations, or in severe cases, life-threatening complications. Key complications linked to steroid use:

  • Heart attack
  • Coronary artery disease
  • Blood clot formation
  • Reduced blood flow to the heart
  • Weakened or stiff heart muscle
  • Arrhythmias
  • Sudden heart problems

These complications may depend on the type of steroid, dosage, and length of use.

When to Seek Medical Attention

People taking steroids should pay close attention to how their body responds. Some side effects may appear mild at first but can signal more serious heart problems if ignored. Seek medical help right away if any of these symptoms occur:

  • Chest pain or pressure that does not go away
  • Shortness of breath during rest or light activity
  • Palpitations, such as a racing, skipping, or pounding heartbeat
  • Swelling in the legs, ankles, or feet

Even low doses of steroids can affect the heart and blood vessels. You should monitor for changes in heart rhythm or blood pressure, even when taking steroids as prescribed by a doctor. A quick guide for warning signs:

SymptomPossible ConcernAction Needed
Chest painReduced blood flow or clotCall emergency services
Shortness of breathFluid buildup, heart strainSeek urgent care
PalpitationsIrregular heartbeatContact a physician

Do not wait for sudden or severe symptoms to improve on their own. Get checked by a doctor as soon as possible. People who use steroids should have regular check-ups, including blood pressure and heart monitoring.