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What causes the right hand to go numb while sleeping?

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Quick Answer

A common cause for a hand going numb while asleep can be related to sleeping in a wrong position. Some other factors that can cause this symptom may be different types of medical issues, including many that affect the nerves in the arm or hand, according to Mayo Clinic.

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Full Answer

Sleeping in the wrong position, such as lying on the arm or hand, can cause numbness in the hand because the body places pressure on this part. This can lead to less blood flow to the affected arm, states Dr. Hyun K. Lee in the Santa Ynez Valley News. This is a common symptom that will go away on its own.

Numbness can also be a symptom of certain medical issues, especially when it occurs frequently. Some possible conditions that can cause this symptom are carpal tunnel syndrome, peripheral neuropathy, multiple sclerosis, ulnar nerve entrapment and cervical spondylosis, reports Mayo Clinic. Another cause may be excessive alcohol abuse.

In many cases, a nerve problem causes the symptom of numbness, pain or tingling in the affected limb. Some conditions that are related to some type of nerve issue are carpal tunnel syndrome, peripheral neuropathy and ulnar nerve compression/entrapment. Nerve damage in different parts of the arm causes the arm and hand going numb. For example, ulnar nerve compression develops due to pressure being placed on the ulnar nerve, which is located near the neck region and runs down the arm to the hand, states the American Association of Orthopaedic Surgeons.

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