Tingling in the left arm can be caused by various conditions, including abnormal blood circulation, carpal tunnel syndrome, spinal disorders, thoracic outlet syndrome, and nerve damage. It can also be a symptom of serious medical problems like heart attack or stroke, so it’s recommended to see a doctor for further tests.
Tingling in the left arm can be caused by many conditions, but generally occurs due to some irregularity in the functioning of the nerves in the arm. These conditions could be serious, such as a heart attack or stroke, but they can also be temporary and minor, such as a momentary blockage of blood circulation that simply puts the left arm to sleep. The tingling is experienced in different ways, depending on the individual. For some, the tingling feels like a “pins and needles” sensation running up and down the arm. It is also often described as a tingling, burning or numb sensation.
One of the most common reasons for left arm tingling is abnormal blood circulation. Even temporarily, pressure on the nerves or blood vessels in the arm can cause a feeling of numbness or tingling. Sleeping in such a way that not enough blood can flow through the arm can cause a “pins and needles” sensation. Jewelery worn on the arm can get in the way of good circulation, as can clothing that is too tight. Messenger bags and backpack straps can also restrict blood flow enough to cause arm pins and needles.
Carpal tunnel syndrome is another common condition that can result in a tingling sensation. This syndrome can cause the median nerve in the wrist to be put under an unusual amount of pressure and compression. Pins and needles pinched or damaged nerves in the left arm like this can directly cause tingling. Spinal disorders can also result in damage to the nerves affecting the left arm. Dislocated or swollen discs can cause pressure that cuts off blood flow to the arm and causes tingling sensations.
Another common cause of left arm tingling is thoracic outlet syndrome. This syndrome occurs when blood vessels or nerves are compressed at the base of the neck as they travel up the arm or armpit. Poor posture, obesity, and repetitive strain injury can cause this syndrome which, in turn, leads to tingling in the left arm. Additionally, diseases that cause nerve damage, such as diabetes and multiple sclerosis, could also be factors in experiencing tingling sensations in an extremity such as the arm.
Tingling in the left arm can also be a symptom of a very serious medical problem, such as a heart attack or stroke. For this reason, it is recommended that anyone suffering from this condition see a doctor. He or she may suggest further medical tests to determine the exact cause.
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