Angina: Symptoms, Causes, Treatment & Complete Guide

Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026

Quick Answer

Angina is a type of chest pain caused by reduced blood flow to the heart and is a symptom of coronary artery disease. It often feels like squeezing, pressure or heaviness in the chest. Unstable angina, which occurs at rest or worsens and doesn't respond to rest, is a medical emergency. Treatment includes lifestyle changes, medicines, stenting or bypass surgery.

What the research says

• For stable angina, medicine alone did as well as an invasive strategy at preventing major heart events. In 5,179 patients with stable coronary disease and moderate or severe ischemia, the 5-year rate of cardiovascular death, heart attack, or hospitalization for unstable angina, heart failure or resuscitated cardiac arrest was 16.4% with an initial invasive strategy versus 18.2% with medicine alone (difference −1.8 percentage points; 95% CI −4.7 to 1.0), with 145 versus 144 deaths. (Maron et al., N Engl J Med, 2020) [3]

• Chest pain is not always the main symptom of a heart attack, especially in women. In a US registry of 1,143,513 patients hospitalized with a heart attack, 42.0% of women and 30.7% of men presented without chest pain. (Canto et al., JAMA, 2012) [4]

• EECP, the nondrug option for refractory angina, improves blood vessel function. A meta-analysis of 19 randomized trials with 1,647 patients found that 3–7 weeks of enhanced external counterpulsation added to usual care improved brachial artery flow-mediated dilation by 1.96% (95% CI 1.57–2.36), a measure of how well blood vessels widen. (Yin et al., Scand Cardiovasc J, 2023) [5]

TL;DR

• What it is: Chest pain from reduced blood flow to the heart — a symptom of coronary artery disease.

• The four types: Stable (most common, exertion-triggered, under 5 minutes), unstable (a medical emergency), variant/Prinzmetal (artery spasm, often overnight), refractory (frequent despite treatment).

• What it feels like: Squeezing, pressure, heaviness, tightness, or burning — sometimes spreading to the arms, neck, jaw, shoulder, or back, with dizziness, nausea, shortness of breath, or sweating.

• In women: Symptoms can differ — neck, jaw, teeth, or back discomfort, nausea, stabbing pain, or stomach pain may show up instead of classic chest pressure.

• The cause: Plaque-narrowed coronary arteries (atherosclerosis); when oxygen demand rises (exercise), the starved heart muscle signals with pain.

• The heart attack rule: Chest pain lasting more than a few minutes that doesn't go away with rest or angina medicines — call 911.

• Diagnosis: ECG, chest X-ray, blood tests, stress test, echocardiogram, nuclear stress test, cardiac CT/MRI, and coronary angiogram.

• Treatment: Lifestyle changes → nitrates, aspirin, beta blockers, statins, and more → EECP therapy → angioplasty with stenting or bypass surgery.

Angina at a Glance

Aspect	Summary
Definition	Chest pain caused by reduced blood flow to the heart
What it signals	A symptom of coronary artery disease
Typical feeling	Squeezing, pressure, heaviness, tightness — like a heavy weight on the chest
Most common type	Stable angina — exertion-triggered, predictable, lasts about 5 minutes or less
Emergency type	Unstable angina — at rest or worsening, 20+ minutes, needs emergency treatment
Core cause	Plaque-narrowed coronary arteries (atherosclerosis) → ischemia (low oxygen)
Most dangerous complication	A heart attack
Diagnosis	ECG, X-ray, blood tests, stress tests, echocardiogram, CT/MRI, coronary angiogram
Treatment ladder	Lifestyle → medicines → EECP → angioplasty with stenting → CABG surgery
Prevention	Same heart-healthy lifestyle changes used to treat it

What Is Angina?

Angina is a type of chest pain caused by reduced blood flow to the heart. It is a symptom of coronary artery disease, and it is also called angina pectoris.

The pain is often described as squeezing, pressure, heaviness, tightness, or pain in the chest — it may feel like a heavy weight lying on it. Angina may be a new pain that needs to be checked by a healthcare professional, or recurring pain that goes away with treatment.

It is relatively common — but some people cannot tell it apart from other types of chest pain, such as heartburn. If you have unexplained chest pain, get medical help right away.

What are the four types of angina?

The four types of angina differ by their cause and by whether rest or medicine eases the symptoms.

Type	What Defines It
Stable angina	The most common form. Happens during activity (exertion) — walking uphill or in cold weather are examples. Predictable and usually similar to previous episodes. Lasts a short time, perhaps five minutes or less, and goes away with rest or angina medicine.
Unstable angina	A medical emergency. Unpredictable — occurs at rest, or the pain worsens and occurs with less physical effort. Severe, lasting longer than stable angina — maybe 20 minutes or longer. Doesn't go away with rest or the usual angina medicines. If blood flow doesn't improve, a heart attack occurs.
Variant angina (Prinzmetal)	Not caused by coronary artery disease — caused by a spasm in the heart's arteries that temporarily reduces blood flow. Severe chest pain is the main symptom; it most often occurs in cycles, typically at rest and overnight. May be relieved by angina medicine.
Refractory angina	Frequent angina episodes despite a combination of medicines and lifestyle changes.

What does angina feel like?

Angina symptoms include chest pain and discomfort that may feel like burning, fullness, pressure, or squeezing. Pain also may be felt in the arms, neck, jaw, shoulder, or back. Other symptoms of angina include dizziness, fatigue, nausea, shortness of breath, and sweating.

The severity, duration, and type of angina can vary — and new or different symptoms may signal unstable angina or a heart attack. Any new or worsening angina symptoms need to be checked immediately by a healthcare professional, who can determine whether you have stable or unstable angina.

Angina in Women

Symptoms of angina in women can differ from the classic presentation — and these differences may lead to delays in seeking treatment. In women, chest pain may not be the only symptom or even the most common one. Other symptoms of angina in women may include:

Signal	How It Presents in Women
Referred discomfort	Discomfort in the neck, jaw, teeth, or back
Nausea	Often alongside or instead of chest pressure
Shortness of breath	Can be the dominant sign
Pain quality	Stabbing pain instead of chest pressure
Stomach pain	Can mimic heartburn — a classic angina masquerader

When to See a Doctor

The emergency rule is simple: chest pain that lasts longer than a few minutes and doesn't go away with rest or angina medicines may be due to a heart attack — call 911 or emergency medical help. Only drive yourself to the hospital if there is no other way to get there.

If chest discomfort is a new symptom for you, see a healthcare professional to determine the cause and get proper treatment. And if you have stable angina and it gets worse or changes, seek medical help immediately.

What causes angina to develop?

Angina is caused by reduced blood flow to the heart muscle. Blood carries the oxygen the heart muscle needs to survive, and when the heart muscle isn't getting enough oxygen, it causes a condition called ischemia.

The most common cause of reduced blood flow is coronary artery disease (CAD). The heart arteries — called the coronary arteries — can become narrowed by fatty deposits called plaques. This condition is called atherosclerosis. Plaque in a blood vessel may rupture or cause a blood clot, and these events can quickly block or reduce flow through a narrowed artery — suddenly and severely decreasing blood flow to the heart muscle.

The demand-and-supply lesson matters: the heart muscle may still work during times of low oxygen demand (such as resting) without triggering angina. But when oxygen demand rises — such as when exercising — angina can result.

What are the risk factors for angina?

Certain health and lifestyle factors may increase a person's risk of developing angina, as the list that follows shows.

Risk Factor	Why It Matters
Increasing age	Angina is most common in adults 60 and older
Family history of heart disease	If your mother, father, or any siblings have or had heart disease or a heart attack, tell your healthcare team
Tobacco use	Smoking, chewing tobacco, and long-term secondhand smoke damage the artery lining, letting cholesterol deposits collect and block blood flow
Diabetes	Increases the risk of coronary artery disease
High blood pressure	Over time, damages arteries by speeding up hardening of the arteries
High cholesterol or triglycerides	Too much LDL ("bad") cholesterol narrows arteries; a high triglyceride level is also unhealthy
Other health conditions	Chronic kidney disease, peripheral artery disease, metabolic syndrome, or a history of stroke
Not enough exercise	Raises the risk of high cholesterol, high blood pressure, type 2 diabetes, and obesity
Obesity	Makes the heart work harder to supply blood to the body
Emotional stress	Raises blood pressure; hormone rushes can narrow arteries and worsen angina
Medicines	Some tighten blood vessels, which may trigger Prinzmetal angina (certain migraine medicines, for example)
Drug misuse	Cocaine and other stimulants cause blood vessel spasms and trigger angina
Cold temperatures	Can trigger Prinzmetal angina

How can angina warn of a heart attack?

The chest pain that occurs with angina can make activities such as walking uncomfortable — but the most dangerous complication is a heart attack. A heart attack occurs when an artery supplying the heart with blood and oxygen becomes blocked: fatty deposits build up over time into plaques, and if a plaque ruptures, a blood clot can form and block the artery.

The warning symptoms of a heart attack include:

Warning Sign	Description
Prolonged chest pressure	Pressure, fullness, or squeezing pain in the center of the chest lasting more than a few minutes
Spreading pain	Pain extending beyond the chest to the shoulder, arm, back, or even the teeth and jaw
Fainting	Loss of consciousness
Sense of doom	A threatening sense of doom
Worsening pattern	Increasing episodes of chest pain
Stomach symptoms	Nausea and vomiting; continued pain in the upper belly area
Breathing trouble	Shortness of breath
Sweating	Unusual perspiration

If you have any of these symptoms, seek emergency medical attention immediately.

How Is Angina Diagnosed?

Angina is diagnosed with a physical exam, questions about your symptoms, risk factors and family history of heart disease, and tests that confirm angina or rule out other causes. Eight tests and procedures may confirm angina or rule out other causes of chest pain:

Test	What It Does
Electrocardiogram (ECG/EKG)	A quick, painless test that measures the heart's electrical activity using sticky electrodes on the chest, arms, and legs. Can show if the heart beats too fast or slow, and whether you are having or have had a heart attack
Chest X-ray	Shows the condition of the heart and lungs, helps rule out other causes of chest pain, and shows if the heart is enlarged
Blood tests	Check for cardiac enzymes — heart proteins that slowly leak into the blood after heart damage from a heart attack
Stress test	Angina is easier to diagnose when the heart works harder — walking on a treadmill or riding a stationary bike while the heart is checked; if you can't exercise, medicines that affect the heart like exercise does are used instead
Echocardiogram	Sound waves create images of the heart in motion, showing how blood flows through it; may be done during a stress test
Nuclear stress test	Measures blood flow at rest and during stress — a radioactive tracer is injected and a scanner follows its movement; areas with little or no tracer likely have poor blood flow
Cardiac CT or MRI	Create images of the heart and chest (X-rays vs. magnetic field and radio waves) and show the severity of heart damage
Coronary angiogram	Uses X-ray imaging to check the inside of the heart's blood vessels. A flexible catheter is inserted into a blood vessel, usually in the groin, guided to the heart; dye flows through it so the heart arteries show up clearly on the X-ray

What are the step-by-step treatment options for angina?

Options for angina treatment include lifestyle changes, medicines, angioplasty and stenting, and open-heart surgery called coronary artery bypass grafting (CABG). The goals are to reduce the number of angina episodes, make symptoms less severe, and lower the risk of a heart attack and death. Immediate treatment is needed if you have unstable angina or chest pain that's different from your usual pattern.

Medications

If lifestyle changes don't improve heart health and relieve angina, medicines come next:

Medicine	How It Works
Nitrates	Relax and widen blood vessels so more blood reaches the heart. The most common form is nitroglycerin, placed under the tongue; sometimes taken before activities that typically trigger angina, or long-term to prevent episodes
Aspirin	Reduces blood clotting, easing flow through narrowed arteries and lowering heart attack risk — don't start daily aspirin without talking to your care team first
Clot-preventing drugs	Clopidogrel, prasugrel, and ticagrelor make platelets less likely to stick together; may be recommended if you can't take aspirin
Beta blockers	Slow the heartbeat and reduce its force, lowering blood pressure and relaxing blood vessels to improve blood flow
Statins	Lower blood cholesterol by blocking a substance the body needs to make it — helping prevent blockages
Calcium channel blockers	Also called calcium antagonists; relax and widen blood vessels to improve blood flow
Other blood pressure medicines	ACE inhibitors and ARBs, for high blood pressure, diabetes, heart failure symptoms, or chronic kidney disease
Ranolazine	For chronic stable angina that doesn't improve with other medicines; used alone or combined

Therapies and Surgery

Sometimes a nondrug option called enhanced external counterpulsation (EECP) is used to increase blood flow to the heart. Blood-pressure-type cuffs are placed around the calves, thighs, and pelvis across multiple sessions — it may help reduce symptoms in people with refractory angina.

If lifestyle changes, medicines, and other therapies don't reduce angina pain, a catheter procedure or surgery may be needed:

Procedure	What Happens
Angioplasty with stenting (percutaneous coronary intervention)	A tiny balloon is inserted into the narrowed artery and inflated to widen it; a small wire mesh coil called a stent is usually inserted to keep the artery open. Improves blood flow, reducing or eliminating angina — a good option for unstable angina or chronic stable angina that hasn't responded to lifestyle changes and medicines
Coronary artery bypass grafting (CABG)	Open-heart surgery in which a vein or artery from elsewhere in the body bypasses a blocked or narrowed heart artery, increasing blood flow. An option for both unstable angina and stable angina that hasn't improved with other treatments

What lifestyle changes and home remedies help angina?

Because heart disease often causes angina, heart-healthy lifestyle changes such as not smoking, regular exercise and a healthy diet are an important part of treatment.

1. Don't smoke. Quitting is the most important thing you can do to improve heart health — and avoid secondhand smoke.

2. Get regular exercise. Aim for at least 30 minutes of moderate or vigorous activity five or more days a week (activity limits may apply after a heart attack or surgery — ask your professional).

3. Manage weight. Excess weight strains the heart and raises the risk of high cholesterol, high blood pressure, and diabetes.

4. Eat a healthy diet. Avoid or limit saturated fat, trans fats, salt, and sugar; choose whole grains, fruits, vegetables, and lean protein such as fish and beans.

5. Manage other health conditions. Check your blood pressure, blood sugar, and cholesterol levels as often as your care team recommends.

6. Control stress. Exercise, mindfulness, and support groups can ease stress.

7. Avoid or limit alcohol. Moderation means up to one drink a day for women and up to two for men.

8. Practice good sleep habits. Adults should aim for 7 to 9 hours daily, going to bed and waking at the same time every day — poor sleep may increase heart disease risk.

How should you prepare for an angina appointment?

If you have sudden chest pain, call 911 or your local emergency number immediately. If you have a strong family history of heart disease, make an appointment for a health checkup.

What You Can Do

1. Ask about pre-appointment restrictions — such as fasting for a few hours before a cholesterol test

2. Write down any symptoms, including ones that may seem unrelated to angina — note when they started and what you were doing

3. Write down important personal information, including family history of angina, chest pain, heart disease, stroke, high blood pressure, or diabetes, plus major stresses or recent life changes

4. List all medicines, vitamins, and supplements, including over-the-counter ones, with dosages

5. Take someone along — they can help you remember the information you're given

6. Be prepared to discuss your diet and exercise habits, including any challenges getting started

7. Write down questions for your healthcare team

Questions to Ask

• What's the most likely cause of my chest pain symptoms?

• What kinds of tests will I need, and how do I prepare for them?

• What treatments do you recommend and why?

• What's the safest type and amount of physical activity for me?

• I have other health conditions — how can I best manage these together?

• How often do I need to follow up about my angina?

• Are there brochures or other printed materials I can take home? What websites do you recommend?

What Your Doctor Will Ask

• When did you first begin having symptoms?

• How would you describe the chest pain, and where is it located?

• Does the pain spread to other parts of the body, such as the neck and arms?

• How and when did the pain start — gradually or suddenly? Did a specific trigger set it off?

• How long does the pain last, and what makes it worse or better?

• Do you have other symptoms with the pain, such as nausea or dizziness?

• Do you have trouble swallowing, or a history of heartburn? (Heartburn can mimic angina.)

While waiting, remember: it's never too early to make heart-healthy lifestyle changes — they can help prevent angina complications such as heart attack and stroke.

Frequently Asked Questions

What is angina?

Angina is a type of chest pain caused by reduced blood flow to the heart. It is a symptom of coronary artery disease, often described as squeezing, pressure, heaviness, tightness, or pain in the chest.

What are the different types of angina?

There are four types: stable angina (most common, triggered by exertion, relieved by rest in about five minutes), unstable angina (a medical emergency that occurs at rest or worsens), variant or Prinzmetal angina (caused by an artery spasm, often at rest overnight), and refractory angina (frequent despite medicines and lifestyle changes).

How does angina feel?

Chest pain or discomfort that feels like burning, fullness, pressure, or squeezing — sometimes with pain in the arms, neck, jaw, shoulder, or back, plus dizziness, fatigue, nausea, shortness of breath, or sweating.

Are angina symptoms different in women?

Yes — chest pain may not be the main symptom. Women may instead experience discomfort in the neck, jaw, teeth, or back, nausea, shortness of breath, stabbing pain rather than pressure, or stomach pain.

What causes angina?

Reduced blood flow to the heart muscle (ischemia), most often because the coronary arteries are narrowed by fatty plaque deposits — a condition called atherosclerosis. When oxygen demand rises during exertion, the starved heart muscle signals with pain.

When is chest pain an emergency?

Call 911 if chest pain lasts more than a few minutes and doesn't go away with rest or angina medicines. Also seek emergency care for spreading pain to the arm, jaw, or back, fainting, sweating, shortness of breath, or a threatening sense of doom.

How is angina treated?

Treatment starts with heart-healthy lifestyle changes, then medicines (nitrates such as nitroglycerin, aspirin, beta blockers, statins, calcium channel blockers, and others), then procedures — enhanced external counterpulsation, angioplasty with stenting, or bypass surgery (CABG) when needed.

Conclusion

The three lessons to carry away from this guide:

• Not all chest pain is angina — but unexplained chest pain always deserves attention: angina mimics heartburn and often presents differently in women, so vague or atypical symptoms (jaw pain, nausea, stomach pain) are just as worth checking as classic pressure.

• The type determines the urgency: stable angina is predictable and short; unstable angina is a medical emergency that can cascade into a heart attack — knowing which pattern you have, and calling 911 when pain persists beyond a few minutes, is the decision that saves hearts.

• Treatment is a ladder, and you control the bottom rungs: lifestyle changes are the foundation, medicines build on them, and angioplasty or bypass surgery reserves its power for the cases that need it — so the same daily habits that prevent angina also strengthen every treatment.

This guide has walked you through the four types of angina, what it feels like in men and women, the plaque-and-ischemia mechanism, the thirteen risk factors, the heart attack warning signs, the eight diagnostic tests, the complete treatment ladder, and the home habits that protect your heart. If you want to understand the emergency that unstable angina can become, our guide to acute coronary syndrome covers that territory in depth.

Disclaimer: This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.

References

1. Mayo Clinic. Angina — Symptoms & causes. Accessed October 12, 2026. https://www.mayoclinic.org/diseases-conditions/angina/symptoms-causes/syc-20369373

2. Mayo Clinic. Angina — Diagnosis & treatment. Accessed October 12, 2026. https://www.mayoclinic.org/diseases-conditions/angina/diagnosis-treatment/drc-20369378

3. Maron DJ, Hochman JS, Reynolds HR, et al. Initial invasive or conservative strategy for stable coronary disease. N Engl J Med. 2020;382(15):1395-1407. PMID 32227755. https://doi.org/10.1056/NEJMoa1915922

4. Canto JG, Rogers WJ, Goldberg RJ, et al. Association of age and sex with myocardial infarction symptom presentation and in-hospital mortality. JAMA. 2012;307(8):813-22. PMID 22357832. https://doi.org/10.1001/jama.2012.199

5. Yin Q, Jiang H, Zhang Z, et al. Influence of enhanced external counterpulsation on endothelial function: a meta-analysis of randomized controlled trials. Scand Cardiovasc J. 2023;57(1):2273223. PMID 37876280. https://doi.org/10.1080/14017431.2023.2273223