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The numbness in the left arm corresponds to the loss of sensitivity of that limb and is usually accompanied by tingling, which can happen due to the wrong posture when sitting or sleeping, for example. However, in some cases, numbness can be due to compression on the nerves by the presence of tumors or infection or be one of the signs of a heart attack or stroke, for example.
Thus, it is important to be aware of the presence of other symptoms in addition to numbness, such as neck pain, difficulty breathing, change in heart rate and slurred speech, for example, it is important that the doctor is consulted so that they are tests are carried out to identify the cause and thus initiate the most appropriate treatment.
Tingling and numbness in the left arm is one of the main symptoms of a heart attack, especially when accompanied by other symptoms, such as chest pain in the form of a twinge or tightness, malaise, dry cough and difficulty breathing, for example. Learn how to recognize the symptoms of a heart attack.
The heart attack happens due to lack of blood in the heart due to the presence, in most cases, of fatty plaques inside the vessels, interrupting the blood flow.
What to do: As soon as the first symptoms of a heart attack appear, it is important to go immediately to the hospital, the nearest clinic or call 192 so that the necessary measures. In the hospital, treatment is usually done with the use of an oxygen mask to facilitate the person's breathing, in addition to the use of drugs that can regulate the arrival of blood to the heart, or performing a cardiac catheterization, in which a catheter is inserted. with the aim of placing a stent or balloon to restore blood flow and prevent tissue death.
It is important that after the infarction episode some he alth care is taken, such as regular exercise, according to the cardiologist's recommendation, in addition to avoiding smoking and drinking and having a he althy and he althy diet. poor in fried foods, mainly.
2. Wrong posture
Poor posture can also be considered one of the main causes of tingling and numbness of the left arm, because according to the position of the spine and arm, there may be compression of the nerves, causing numbness.
People who work at a computer, for example, may more often experience numbness in their left arm, especially when the arms are not properly supported, the sitting posture is not correct, and the height or positioning of the computer is not the recommended. Workers whose activity results in pressure on the shoulder or arm may also more often feel their left shoulder numb, as in the case of bricklayers and loaders in stores, for example.
Also, some sleeping positions can also result in numb left arm as well as back problems. See what are the best and worst sleeping positions.
What to do: To improve your posture and prevent your arm from going numb, it is important to keep your spine straight and distribute your body weight over both feet when you are standing. foot, in addition to ensuring that the buttock bone and back are supported on the chairs and feet on the floor when sitting.
Also, it is important to be aware of your body and exercise regularly. Check out in the video below some exercises to improve posture:
Tendinitis, which is the inflammation of the structures that connect the bone to the muscle, can arise due to repetitive efforts, such as washing clothes, cooking, writing or typing for a long time, for example, which can cause the arm to become numb and tingly, due to repetitive motion of the shoulder or elbow joint.
Furthermore, there may be arm weakness, difficulty in performing some movement and cramps, for example.
What to do: The treatment of tendinitis is done according to the medical recommendation, being usually indicated the use of anti-inflammatory drugs, use of ice pack at least 3 times a day for 20 minutes and physiotherapy, for example. In addition, it is important to avoid the activity responsible for tendinitis.
4. Nerve injury or pressure
Some situations can put pressure on the nerves located in the back that radiate to the arms and when this happens, there can be numbness and tingling of the arm. Some situations that can cause pressure on these nerves are tumors, osteoarthritis of the spine, infection, standing in the same position for a long time and even a herniated disc in the cervical, for example.
What to do: In these cases, it is most recommended to go to a neurologist or orthopedist to identify the cause of nerve compression, through clinical evaluation and image, and thus treatment is indicated, which can be done with physiotherapy, in most cases, or surgery.
A stroke, also known as a stroke, can also be a symptom of numbness and tingling in the left arm, in addition to a severe headache, lack of strength on one side of the body, slurred speech and loss of sensitivity.
What to do: In the presence of signs indicative of a stroke, it is important that 192 is contacted or the person is referred to the hospital so that the most appropriate treatment can be initiated. See more details about AVC and what to do.
When to go to the doctor
It is important that the doctor is consulted when symptoms other than arm numbness appear, such as:
- Chest pain;
- Difficulty breathing;
- Difficulty performing everyday movements, such as writing or typing, for example;
- Frequent cramps;
- Neck pain;
- Loss of arm strength;
Thus, in the presence of these signs and symptoms, the doctor may recommend carrying out laboratory and/or imaging tests to identify the cause and, thus, indicate the most appropriate treatment.