AI Summary Overview
Quick Glance: Common Atherosclerosis Symptoms
Atherosclerosis often develops without symptoms in its early stages. When symptoms develop, they may include:
-
Chest pain or pressure, particularly during activity
-
Shortness of breath or unusual tiredness with exertion
-
Pain, aching, heaviness or cramping in a leg while walking
-
Leg discomfort that improves after resting
-
A foot or leg that feels unusually cold, numb or weak
-
Slow-healing sores on the toes, feet or legs
-
Sudden facial or limb weakness, speech difficulty or vision changes
-
Abdominal pain after eating, with reduced appetite or weight loss
Symptoms depend on the arteries affected and the degree of blood-flow restriction. Leg pain that appears during activity and improves with rest is known as intermittent claudication and is a common manifestation of peripheral artery disease (PAD).
Atherosclerosis Symptoms That Should Not Be Ignored
Atherosclerosis may not cause noticeable symptoms in its early stages. However, as plaque builds up and restricts blood flow, the following symptoms can develop and should not be ignored:
| Symptom | What It May Indicate |
| Chest pressure or discomfort during physical activity | Reduced blood flow through the coronary arteries, potentially causing angina |
| Breathlessness, unusual tiredness or reduced exercise tolerance | Coronary artery disease or reduced heart function |
| Leg, thigh, calf or buttock pain during walking that improves with rest | Peripheral artery disease and intermittent claudication |
| Foot pain while resting, particularly at night | Severely reduced blood flow to the leg or foot |
| A cold, pale, bluish or numb foot | Significant restriction of circulation to the affected limb |
| A sore on the toe, foot or leg that heals slowly | Advanced peripheral artery disease and impaired tissue blood supply |
| Sudden facial drooping, one-sided weakness or speech difficulty | A transient ischemic attack (TIA) or stroke requiring emergency assessment |
| Sudden loss or disturbance of vision | Reduced blood flow to the eye or brain |
| Recurrent abdominal pain after meals with weight loss | Chronic mesenteric ischaemia |
| Difficult-to-control high blood pressure or declining kidney function | Possible narrowing of an artery supplying a kidney |
Why Do Atherosclerosis Symptoms Occur?
Atherosclerosis symptoms develop when plaque, made up of substances such as cholesterol, fats, calcium, and cellular debris, builds up within the walls of arteries. Over time, plaque can make an artery narrower and reduce the amount of oxygen-rich blood reaching tissues and organs.
In the early stages, the artery may still allow enough blood to flow, so there may be no noticeable symptoms. As narrowing becomes more significant, the affected tissues may not receive enough oxygen, particularly when the body's demand for blood increases during exercise or physical stress. This can lead to symptoms such as chest pain or leg pain during walking.
Atherosclerotic plaque can also become unstable and rupture. When this happens, a blood clot may form at the site and partially or completely block the artery. If the blockage affects blood flow to the heart, it may cause a heart attack; if it affects the brain, it may result in a TIA or stroke.
Atherosclerosis Symptoms That Require Immediate Medical Attention
Certain atherosclerosis symptoms can indicate a serious complication, such as a heart attack or stroke and medical attention at the earliest is highly recommended. These include:
-
Severe or persistent chest pain or pressure
-
Chest discomfort accompanied by sweating, nausea, breathlessness or pain spreading to the arm, neck, jaw or back
-
Sudden facial drooping or weakness on one side of the body
-
Sudden speech difficulty, confusion or inability to understand speech
-
Sudden loss or disturbance of vision
-
Sudden severe difficulty walking or loss of coordination
-
Sudden severe pain, coldness, paleness, numbness or weakness in an arm or leg
-
Sudden severe abdominal pain, particularly when the pain appears greater than expected from the physical findings
-
Sudden severe chest, abdominal or back pain that may indicate an aortic emergency
Symptoms of Atherosclerosis Based on Type
The symptoms of atherosclerosis vary depending on the location of the affected artery. The condition may affect arteries supplying the heart, brain, limbs, kidneys and other parts of the body.
These types of location-based atherosclerosis are listed with their symptoms in the table below:
| Type or Location of Atherosclerosis | Common Symptoms and Signs |
| Coronary Arteries | Chest pain or pressure, breathlessness, reduced exercise tolerance, unusual tiredness, nausea, dizziness or sweating; a sudden blockage may cause a heart attack |
| Carotid or Other Brain-Supplying Arteries | Often no symptoms until a TIA or stroke occurs; sudden facial drooping, one-sided weakness, speech difficulty or vision changes may develop |
| Peripheral Arteries of the Legs | Pain, aching, heaviness or cramping during walking, a cold or discoloured foot, numbness, weak pulses, rest pain and slow-healing wounds |
| Renal Arteries | Often no noticeable symptoms; possible difficult-to-control high blood pressure or worsening kidney function |
| Mesenteric Arteries | Abdominal pain after meals, reduced food intake, fear of eating and unintentional weight loss; sudden blockage can cause severe acute abdominal pain |
| Aorta | Aortic plaque itself is usually asymptomatic; related aortic complications may cause sudden, severe chest, back or abdominal pain |
The symptoms may differ from person to person and can depend on how severely blood flow is restricted. Some forms of atherosclerosis may remain asymptomatic until the disease becomes advanced or a serious complication occurs.
Symptoms of Atherosclerosis in Children
Atherosclerotic changes can begin during childhood, but they usually do not cause noticeable symptoms at this stage. Clinically significant symptoms are uncommon unless a child has a severe inherited cholesterol disorder or another condition that greatly accelerates arterial disease.
When symptoms do occur, they depend on which arteries are affected. A child may experience chest pain, shortness of breath, leg pain during physical activity or other atherosclerosis symptoms caused by reduced blood flow. Severe inherited cholesterol disorders may also cause xanthomas, which are fatty deposits in the skin or tendons. These are signs of an underlying cholesterol disorder rather than symptoms directly caused by narrowed arteries.
Because symptoms of atherosclerosis are uncommon in children, evaluation usually focuses on cholesterol levels, family history and other cardiovascular risk factors rather than waiting for symptoms to develop.
Can You Have Atherosclerosis Without Symptoms?
Yes. Atherosclerosis can remain silent for many years, particularly during its early stages. A person may have plaque buildup without experiencing chest pain, breathlessness or other obvious symptoms.
Symptoms often appear only when an artery becomes sufficiently narrowed to limit blood flow or when a plaque ruptures and a blood clot forms. In some cases, atherosclerosis may only be discovered during tests performed for another reason or after a cardiovascular event.
Blood-pressure checks and cholesterol or glucose tests help identify risk factors for atherosclerosis, but they do not by themselves prove that plaque is present. Further testing is selected according to the person’s symptoms, overall risk and the arteries suspected of being affected.
When Can Atherosclerosis Symptoms Become Life-Threatening?
Atherosclerosis can become life-threatening when the buildup of fatty deposits causes an artery to become severely narrowed or blocked. A blood clot can also form on a damaged plaque and suddenly stop blood flow.
The table below highlights symptoms that may indicate a serious complication of atherosclerosis and explains why they require urgent medical attention:
| Serious Complication | Why It Is Dangerous |
| Heart Attack | A blocked coronary artery can deprive heart muscle of oxygen, causing permanent damage or cardiac arrest |
| Ischaemic Stroke | A clot or severe arterial narrowing interrupts blood flow to the brain, causing sudden neurological damage |
| Transient Ischaemic Attack | Temporary interruption of brain blood flow causes stroke-like symptoms and warns of a high risk of a future stroke |
| Acute Limb Ischaemia | Sudden arterial blockage causes severe pain, coldness, numbness or weakness and can lead to tissue death or limb loss |
| Chronic Limb-Threatening Ischaemia | Severe long-term restriction causes rest pain, non-healing wounds, infection or gangrene |
| Acute Mesenteric Ischaemia | Sudden loss of intestinal blood flow can cause bowel damage, infection, sepsis and death |
| Related Aortic Emergency | An aneurysm rupture or acute aortic syndrome may cause major internal bleeding or loss of blood flow to vital organs |
How are Atherosclerosis Symptoms Diagnosed?
The tests are selected by the doctor based on the person's symptoms, medical history and suspected location of arterial disease. The test results are interpreted alongside the clinical picture rather than relying on a single test.
The following tests may be recommended to assess atherosclerosis symptoms:
| Test or Assessment | Purpose |
| Medical and Family History | Estimates risk and identifies the likely arterial territory involved |
| Physical Examination | Looks for evidence of restricted circulation or related cardiovascular disease |
| Blood Test | Checks for blood sugar levels and cholesterol |
| Electrocardiogram (ECG/EKG) | May identify rhythm abnormalities, previous heart injury or changes associated with reduced coronary blood flow; it does not directly show arterial plaque |
| Ankle - Brachial Index (ABI) | Helps diagnose peripheral artery disease |
| Doppler Ultrasound | Evaluates carotid, peripheral, renal or other accessible arteries |
| Exercise Stress Test | Helps assess suspected coronary ischaemia |
| CT Angiography (CTA) or MR Angiography (MRA) | Identifies narrowing, blockage, aneurysm, or other vascular abnormalities throughout the circulatory system |
| Coronary Calcium CT | May help assess coronary risk in selected people |
| Catheter Angiography | Used when precise definition is necessary or an intervention is being considered |
FAQs
-
Q1. What are the most common symptoms of atherosclerosis?
Ans: Atherosclerosis often causes no symptoms in its early stages. When blood flow becomes restricted, symptoms may include chest pain or pressure, shortness of breath, leg pain while walking, numbness, weakness, dizziness and vision changes. -
Q2. Can atherosclerosis develop without symptoms?
Ans: Yes. Atherosclerosis can remain silent for years. Symptoms may only appear when plaque significantly narrows an artery or when a blood clot suddenly blocks blood flow. -
Q3. Can children develop atherosclerosis?
Ans: The plaque buildup process that leads to atherosclerosis can begin in childhood, although typical symptoms are rarely observed. Children with severe cholesterol disorders or a strong family history should be assessed earlier.
-
References
-
https://www.nhlbi.nih.gov/health/atherosclerosis/symptoms
-
https://medlineplus.gov/atherosclerosis.html
-
