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What To Know About A Blood Clot In The Arm
A clot needs urgent attention, as it can lead to complications. Blood clots can form in veins throughout the body, including the arm. Signs to look out for include cramping pain, swelling, and skin that looks bruised and is warm to the touch.
The body forms blood clots in response to a cut, scrape, or injury.
These clots can be dangerous if they dislodge and travel to other parts of the body, so swift treatment is essential.
If a person sustains an open wound, platelets within the blood form a plug to stop the bleeding. When this occurs at the site of a wound, it is beneficial. However, when a clot occurs in the veins, it can be harmful.
In this article, we take a look at what happens when a blood clot forms in the arm, the potential causes, and the treatment options.
A blood clot is a semisolid clump of blood that typically forms to stop a cut from bleeding. At times, a blood clot may form within a vein.
Doctors describe and define blood clots according to where they form in the body. There are three types of clot:
Clots that form in the deep veins in the arms are a form of DVT. According to one review of studies, about 4% to 10% of all DVT occurs in the arms.
DVT affects about one in 1,000 people per year. The majority of cases occur in a person's legs.
Many people will not experience any symptoms when a DVT forms in their arm. In other cases, symptoms may develop slowly.
When they occur, the symptoms of a blood clot in the arm may include:
If these symptoms occur, a person should seek emergency medical attention. DVT in the arms can be very dangerous.
Some of the possible complications of a blood clot in the arm can be dangerous.
One of the biggest dangers is that the clot could dislodge and travel to the lungs. If this occurs, it is called a pulmonary embolism. It can block the flow of blood to part of the lungs, causing that area of tissue to die.
A pulmonary embolism can be fatal, so it is vital to take it seriously. If a person experiences pain in the chest along with sudden shortness of breath, they may have a pulmonary embolism.
In addition, a person may have:
A person should seek emergency medical assistance if they experience any of the symptoms of either a blot clot in the arms or a pulmonary embolism.
A doctor can diagnose the blood clot and provide appropriate treatment to help prevent further complications.
When a blood clot forms in the arm, doctors classify it as either primary or secondary. They base these designations on the cause of the clot.
Primary clotsPrimary clots are rare compared with secondary clots. One known cause is Paget-Schroetter syndrome, which typically occurs following a strenuous activity that uses the arm, such as rowing.
Muscle overgrowth, bone growth, and bone fractures can also cause primary clots. Sometimes, the cause of a primary clot will be unknown.
Secondary clotsSecondary clots are much more common and contribute to 80% of all DVT cases.
Secondary clots occur when an event triggers the clot. Some events that can have this effect include:
The implantation of a medical device in the arm can put people at increased risk of developing a blood clot in this part of the body. The increased use of both catheters in the veins and pacemakers has led to an increased number of cases of DVT in the arms.
Cancer is another common risk factor for developing DVT in one of the arms. Having surgery also increases a person's risk of developing a blood clot in this part of the body.
Some other factors that increase a person's risk of developing a blood clot in their arm include:
Share on PinterestHealthcare professionals commonly use ultrasound scans to examine potential blood clots.Diagnosis typically begins with a physical examination of the area where the person is experiencing symptoms.
While a doctor examines the area, they are likely to ask questions about when the symptoms started, what was happening before they started, and any other symptoms that the person is experiencing.
If the doctor suspects that a blood clot is present, they will often order imaging scans. One of the most commonly requested scans is an ultrasound. The doctor may also order one of the following:
If a person is in the hospital following pacemaker surgery or another procedure, the healthcare team will monitor the person for signs of a blood clot. They will know the signs and symptoms of a blood clot as well as how to treat one if it forms.
Treatment typically starts with the doctor making a plan of action. In most treatment plans, the goals are to:
Typical methods to treat a blood clot in the arm include:
When a clot does not respond to these treatments, a doctor may recommend the removal of the clot. They can remove the clot by using a minor surgical procedure or injecting medication to break it up.
Over time, a person may have to continue to use blood thinners or compression. Doing this can help prevent another clot from forming in the arm. A person's doctor will recommend a specified period of continued therapy, which tends to last for several months.
A person should seek medical attention immediately if they suspect that they may have a blood clot in the arm.
A blood clot in either of the arms can be dangerous as it might break loose and get into the lungs. If this occurs, it can cause a life-threatening situation.
A doctor can treat a blood clot in the arm with a few simple methods and therapies. Following treatment, a person can expect a few months of continued therapy to prevent further clots from forming.
How To Prevent Blood Clots
Medically reviewed by Steffini Stalos, DO
A blood clot is a semi-solid mass of blood cells that are clumped together. When you have an injury like a cut or scrape on your skin, platelets and proteins in your plasma (the liquid portion of your blood) form a clot over the injury to help stop the bleeding. While blood clots can help prevent excessive hemorrhaging (blood loss), they can be harmful when they form inside your blood vessels (such as your arteries and veins).
A blood clot that forms inside an artery or vein is called a thrombus. A thrombus can partially or entirely block blood from reaching the surrounding tissues. When a blood clot breaks away from where it originally developed and travels to a different area, it is called an embolism.
Blood clots can develop almost anywhere in your body, including the arms and legs, brain, kidneys, heart, lungs, and abdomen. Depending on where a blood clot is blocking blood flow or where it moves in the body, it can be dangerous and potentially life-threatening. Fortunately, blood clots are often preventable, and there are several things you can do to lower your risk of getting one.
Who Is Most at Risk?Blood clots can affect anyone, but some people have a higher risk than others. Knowing if you are at risk for blood clots is one of the most important steps you can take to prevent them. The most common risk factors for blood clots include:
Age: Older adults over the age of 65 are more likely to develop blood clots because aging can affect the health of your blood vessels and how easily blood flows through your veins.
Sex: Generally, people assigned male at birth have a higher risk of blood clots. But, those assigned female at birth have higher chances of getting a blood clot when their estrogen levels increase during pregnancy or while taking hormonal birth control or postmenopausal hormone therapy.
Medical conditions: Some medical conditions are associated with excessive blood clotting (medically known as hypercoagulation) and an increased risk of blood clots. These conditions include cancer, diabetes, atherosclerosis (a type of heart disease), vasculitis (blood vessel inflammation), heart failure, atrial fibrillation (irregular heartbeat), obesity, and metabolic syndrome.
Sedentary lifestyle: Staying stationary (or, not moving) for long periods of time, such as on bed rest or during long flights or car rides, slows blood flow and increases the risk of blood clots.
Smoking: Tobacco use changes the surfaces of your platelets, making them more likely to stick together and form clots. It also damages the lining of blood vessels, which also increases the risk of a blood clot.
Surgery or trauma: Major surgery, especially abdominal, knee, or hip surgery, and traumatic injury (e.G., car accident or falls) can injure blood vessels and cause blood clots to form.
Medications: Certain medications that can affect the function of your blood vessels, such as hormone replacement therapy, cancer treatments, and hormonal birth control, can increase the risk of blood clots.
Having a close family member with a history of blood clots may make you more likely to develop a blood clot yourself. Some inherited conditions, which occur due to gene mutations (changes) that affect blood clotting factors, can increase your risk of blood clots. The following conditions are associated with a higher risk of blood clots:
Factor V Leiden: A type of gene mutation that has a higher than average risk of blood clots, particularly blood clots that develop in the legs (deep vein thrombosis) and embolisms that travel to other areas of the body, such as the lungs. This occurs in about 5% of people with European ancestry.
Prothrombin 20210 mutation: Also known as factor II mutation, this condition causes abnormally high levels of prothrombin—a protein that helps your blood clot. About 2% to 4% of people with European ancestry and 0.4% with African ancestry have this mutation.
Protein C and S deficiencies: Protein C and protein S are the body's natural blood thinners, helping prevent blood clots. Genetic mutations that cause a deficiency in either protein can increase your risk of blood clots.
Antithrombin deficiency: Antithrombin is a protein that protects your body from clotting too much blood. If your antithrombin levels are low, you are more likely to develop blood clots. Though antithrombin deficiency is rare, about half of those with this deficiency will develop at least one blood clot, usually after adolescence.
If you have a family member with a history of blood clots and are concerned about your risk, your healthcare provider can order blood and genetic tests to help determine whether you have an inherited blood clotting disorder.
How to Reduce Your RiskKeep in mind: not everyone who is at risk for a blood clot will develop them. If you have a higher chance of developing blood clots, there are things you can do to help prevent them, including lifestyle modifications and medications.
Engage in Physical ActivityMoving your body with regular exercise and physical activity helps keep your blood flowing and prevents it from pooling, which is key for preventing blood clots. Aim for some kind of daily physical activity or movement. You don't always need to exert yourself during your workouts. In fact, taking a walk helps prevent blood circulation, and even short walks benefit blood flow. If you are sitting for a prolonged period of time, try ankle and leg exercises from your chair. You can try:
Marching in place, lifting your legs one at a time from your seat
Rotating your ankles clockwise and counter-clockwise
Foot pumps, by placing your toes on the floor and lifting your heels as high as you can
Consuming a balanced diet with nutritious foods plays a major role in preventing blood clots. A heart-healthy diet with plenty of fresh fruits, vegetables, whole grains, and lean proteins can help improve cholesterol levels and reduce inflammation to support your heart health. Limit your intake of saturated fats and foods high in sodium (salt), such as prepackaged snacks, soups, and canned vegetables.
Stay HydratedGood hydration supports healthy blood flow and reduces the risk of blood clots. When you are dehydrated, your blood retains sodium, which can slow down blood circulation and increase your chances of having a blood clot.
Experts suggest drinking plenty of water daily for optimal blood flow. The current guidelines recommend drinking at least nine glasses (72 ounces) daily for women and 13 glasses (104 ounces) for men. But, you may need slightly more or less depending on the climate you live in, your activity level, and overall health. Talk to your healthcare provider to learn the water intake level that is right for you.
Manage ObesityObesity is a risk factor for blood clots. Excess body fat puts added pressure on your veins and damages the valves in your veins, which keep blood flowing up toward the heart. When the valves are impaired or damaged, blood can pool in the vein, causing varicose veins and increasing the risk of blood clots. Maintaining a weight that is right for your body can reduce pressure on the veins and promote good circulation, which prevents blood from pooling and clotting.
Stop SmokingTobacco use can thicken the blood and increase your risk of blood clots. Smoking also causes plaque to build up inside the artery walls, causing them to narrow and affect your blood flow. A blood clot within a narrowed blood vessel can lead to a heart attack.
If you smoke, quitting is one of the best things you can do to prevent blood clots and protect your heart health. It's not always easy to quit smoking. If you're interested in stopping, talk to your loved ones and healthcare provider for support and resources to sustain the new lifestyle change.
Reduce Your Stress LevelsWhen you're stressed, your body releases stress hormones (like cortisol), which can play a role in forming blood clots. High cortisol levels increase the number of platelets in your blood—the blood cells that help prevent excess bleeding. With more platelets in your blood, you have a higher chance of forming a blood clot within a vein or artery.
Stress management looks different for everyone but may include breathing exercises, meditation, yoga, and getting plenty of sleep. Having a strong social support network can also help you cope with stress. Make time for your friends and family, and ask for help from a mental health provider when you need it.
Wear Compression StockingsCompression stockings are specialized socks that are designed to improve blood circulation in your legs. The stretchy, elastic material fits snugly around the legs and helps promote blood flow from the legs back up to the heart—which may help prevent blood clots. Compression stockings come in various lengths (extending up to the knee or groin) and compression levels and are available both with and without a prescription.
Take MedicationsIf your healthcare provider suspects you're at an increased risk for blood clots, they may prescribe blood-thinning medications to help prevent blood clots from forming. Blood-thinning medications include:
Anticoagulants: Anticoagulant drugs, such as heparin and warfarin, slow down your body's process of making blood clots
Antiplatelets: Antiplatelet drugs, such as aspirin and clopidogrel, prevent platelets from sticking together and forming clots
Talk to your healthcare provider if you have concerns about developing blood clots. They can help assess your risk and develop a prevention plan to lower your risk. You may want to ask your healthcare provider questions, such as:
Do I have any underlying health conditions that can raise my risk of a blood clot?
How would I know if I have a blood clot?
What should I do if I develop symptoms of a blood clot?
What are some things I can do to reduce my risk of blood clots?
Are there medications or supplements I can take to lower my risk?
Discuss any major lifestyle changes with your healthcare provider before implementing them. For example, if you are considering starting a new exercise program or adding dietary supplements to your daily routine, talk to your healthcare provider first to see if these methods are right for you. They can help ensure any changes you make are safe and effective for your health.
A Quick ReviewWhile blood clots can help reduce your risk of losing too much blood, when a blood clot forms inside of your blood vessels, you can experience serious and life-threatening complications. Fortunately, there are many things you can do to reduce your risk of developing blood clots.
Experts recommend trying prevention strategies like eating a healthy diet, exercising regularly, not smoking, and managing stress. Wearing compression stockings or taking blood-thinning medications may also help prevent blood clots in some people. Talk to your healthcare provider if you are concerned about your risk of developing blood clots. They can help develop a prevention plan to lower your risk of blood clots and support your overall health.
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