artery at night

Overview

‘Artery at night’ usually refers to symptoms of peripheral artery disease (PAD) that happen when you are resting or lying down, especially at night. In PAD, the arteries (blood vessels that carry oxygen-rich blood) in your legs become narrowed or blocked by fatty deposits. This reduces blood flow. When you lie down, your heart doesn’t have to work as hard to pump blood to your legs, so the reduced blood flow becomes more noticeable, often causing pain, cramping, or a heavy feeling in your calves or thighs. The pain usually goes away when you dangle your legs over the side of the bed or walk around a little.

Yes, peripheral artery disease is fairly common, especially in people over 50. Many people with PAD don’t even know they have it because symptoms can be mild or mistaken for something else like aging or arthritis.

It mostly affects older adults, particularly those over 60. People with diabetes, high blood pressure, high cholesterol, or who smoke have a higher chance of developing PAD. It can also run in families.

Symptoms

Common symptoms

• A dull, aching, or cramping pain in your leg muscles (often in the calves) that happens when you are resting, especially lying down at night.
• The pain usually goes away when you move your legs, walk a little, or dangle your legs over the edge of the bed.
• Coldness or numbness in your lower leg or foot compared to the other leg.
• Sores or wounds on your toes, feet, or legs that heal slowly or not at all.
• Shiny, tight skin on your legs, or loss of hair on your legs and feet.

Symptoms in children

• Artery problems at night in children are very rare and usually linked to a serious underlying condition, such as a blood clot or an injury. Symptoms might include sudden severe leg pain, pale or cold skin, and inability to move the leg. This is a medical emergency.

Symptoms in older adults

• Older adults may have the same symptoms but might also confuse them with arthritis, sciatica, or neuropathy (nerve damage from diabetes). Nighttime leg pain that gets better with movement is a key clue.

Causes

Main causes

• Atherosclerosis: a build-up of fatty deposits (plaque) inside the arteries, which narrows them and reduces blood flow to the legs.
• Blood clots that form in the arteries can suddenly block blood flow.

Risk factors

• Smoking or using tobacco products (the biggest risk factor).
• Diabetes (high blood sugar damages arteries).
• High blood pressure (hypertension).
• High cholesterol (especially high 'bad' LDL cholesterol).
• Being overweight or obese.
• Age (over 50, but especially over 60).
• A family history of PAD, heart attacks, or strokes.

When to see a doctor

See a doctor urgently if:

• If you have sudden, severe leg pain with coldness and paleness – call emergency services.
• If a leg wound seems infected (redness spreading, fever, foul smell) – see a doctor the same day.

Book a routine appointment if:

• If you have leg pain or cramping that regularly wakes you up at night or happens when you rest.
• If you notice any sores on your feet or legs that are slow to heal.
• If you are at high risk (smoker, diabetes) and have any leg symptoms.

Diagnosis

Your doctor will ask about your symptoms, medical history, and risk factors. They will also do a physical exam, checking the pulses in your legs, listening to your arteries with a stethoscope, and looking at your skin and nails.

Tests that may be done

• Ankle-brachial index (ABI): a simple, painless test that compares the blood pressure in your ankle with the blood pressure in your arm. A low number in the ankle suggests PAD.
• Doppler ultrasound: a scan that uses sound waves to create pictures of blood flow in your leg arteries.
• Blood tests: to check for diabetes, high cholesterol, and other conditions.

What to expect at your appointment

The tests are all non-invasive and painless. You may be asked to lie still for a few minutes. If PAD is suspected, your doctor may refer you to a heart or circulation specialist (vascular specialist) for further care.

Treatment

Treatment for PAD focuses on improving blood flow to your legs, reducing symptoms, and lowering your risk of heart attack and stroke. It often starts with lifestyle changes and can include medicines or, in advanced cases, procedures to open blocked arteries.

Self-care at home

• Walk regularly to build up the muscles in your legs. A walking programme of 30–45 minutes, 3–4 times a week, can greatly improve symptoms.
• If you smoke, getting help to stop is the single most important thing you can do.
• Keep your feet and legs clean and dry, and check them every day for cuts, blisters, or sores.
• Avoid extreme cold or heat on your legs (like hot water bottles or heating pads).

Medical treatments

Doctors may prescribe medicines to reduce your risk of blood clots and help lower cholesterol and blood pressure. They might also give you medicines that help relax your blood vessels so blood can flow more easily. Always take medicines exactly as prescribed and discuss any side effects with your doctor.

When is surgery considered?

If symptoms are severe and do not improve with lifestyle changes and medicines, a doctor may suggest a procedure such as angioplasty (inflating a small balloon in the narrowed artery) or bypass surgery (creating a new route for blood flow). Your doctor will explain the options that are best for you.

Living with this condition

Living with PAD means paying extra attention to your feet and legs. Check them daily for any changes. Wear comfortable, well-fitting shoes. Stay as active as possible within your comfort limits. Many people find that regular walking helps reduce nighttime pain over time.

Lifestyle tips

• Stop smoking – this is the most effective step you can take.
• Eat a heart-healthy diet (see diet and exercise).
• Maintain a healthy weight.
• Manage stress with relaxation techniques like deep breathing or gentle exercise.
• Limit alcohol to moderate amounts.

Diet and exercise

Eat plenty of fruits, vegetables, whole grains, and lean proteins like fish and chicken. Reduce salt, sugar, and unhealthy fats. Aim for at least 150 minutes of moderate exercise per week, like brisk walking, cycling, or swimming. If walking causes pain, try walking for short periods and resting when needed – over time you may be able to walk farther.

Mental health and emotional wellbeing

Living with chronic pain or mobility issues can be frustrating and may lead to sadness or worry. It is normal to feel this way. Talking to a counselor or joining a support group can help. Some people find that staying active and connected with others improves their mood.

Prevention

You can lower your risk of developing PAD or keep it from getting worse by making healthy lifestyle choices: not smoking, eating well, staying active, managing your weight, and keeping your blood pressure, cholesterol, and blood sugar under control.

Screening programmes

There is no routine screening for PAD in the general population. However, if you have risk factors such as diabetes, smoking, or a family history, your doctor may check your ankle-brachial index as part of a heart health check-up.

Complications

If left untreated

• Severe leg pain that limits walking and daily activities.
• Non-healing sores or ulcers on the legs or feet that can become infected.
• Gangrene (tissue death) that may require amputation of a toe, foot, or part of the leg.
• Higher risk of heart attack and stroke.

Long-term outlook

With proper treatment and lifestyle changes, most people with PAD can manage their symptoms and prevent complications. Many people see big improvements in their night-time pain and are able to walk longer distances without discomfort. It is important to follow your doctor’s advice and stay committed to a heart-healthy lifestyle.

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