Pain in the left arm: what can it be?

When people say they have pain in their left arm, it means that some area between the shoulder and wrist is experiencing intense discomfort. This pain can be caused by different causes, it can be a simple injury, but it can also be a sign of a more serious physical problem.

Next we are going to see what this type of pain may be indicating.

On many occasions this pain can be centered in some area in the arm , but it can radiate to the neck, spine or chest due to the large number of nerves, muscles and arteries that exist in this area. Many people feel alarmed because if their left arm hurts it may be associated with heart problems.

In many cases, you should not think the worst when you start experiencing pain in this area, but you should determine what other symptoms are paired with the pain in your arm, to get the necessary attention and make it stop.

Causes of pain in the left arm

There are several reasons why we can suffer from this type of discomfort, discover them below:

Heart problems

It is one of the most serious causes People who suffer from angina often feel pain in the chest that may radiate to the shoulders and the back of the arm. In more severe cases, heart attacks can cause pain in the left arm and chest, which feels like a squeezing, pulling sensation in the arm.

If the pain comes on suddenly or feels very bad, these signs will need to be taken very seriously, and if the pain in the chest and arm is associated with nausea, dizziness, or sudden, overwhelming weakness, it will be important to get help immediately.

Bad circulation

Poor circulation can often cause your left arm to suffer from pain, because the latter is often more affected than the right, due to the direction of blood flow in the body , and if it is a circulation problem, everything your body will be affected.

If you notice that your fingers or extremities tend to fall asleep easily or tend to be colder then these are signs that circulation is not adequate. It can also manifest as a dull pain or tight feeling in the extremities, especially when you are not moving for a long period of time.


Stress can cause your left arm to suffer from pain and stiffness; In periods of stress due to work difficulties or problems in your personal life, stress can manifest itself with physical symptoms.

It is not uncommon for chronic stress to cause dull pain in the left arm, which can grow over time. Panic attacks can also lead to chest pressure or arm pain, which can feel very similar to a heart attack.


Certain medications can contribute to poor circulation, which can lead to left arm pain over time. If you are experiencing any of the side effects mentioned and have started taking a new medication, you may be suffering from a medication side effect.

Physical difficulties

Sometimes physical difficulties can lead to uncomfortable pain in the left arm. Overuse of your arm or heavy physical activity, such as lifting heavy objects or doing exercises, damages your arm muscles or joints.

Bad posture

Poor posture or sleeping in unhealthy positions can lead to this type of pain. If you frequently feel like pins and needles in your left arm, and it is associated with problems falling asleep, the arm may be numb, and it may have to do with a nerve pinching this area. This may be due to an uncomfortable position for a long period of time or overuse of one side of your body compared to the other.

As you can see, there can be many reasons why we get pain in our left arm , some are not very important and others can be a sign of a more important problem, so as always we recommend from our blog, if you have If you have a problem , go to a doctor to have it properly diagnosed.

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