Read below about numbness in one hand, including causes and common questions. Or get a personalized analysis of your numbness in one hand from our A.I. health assistant. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

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5 Potential Numbness in One Hand Causes

Disclaimer: The article does not replace an evaluation by a physician. Information on this page is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.

  1. 1.Ulnar Nerve Entrapment of Elbow

    Ulnar Nerve Entrapment of Elbow is the compression of the ulnar nerve, causing numbness and/or weakness in the hands.

    Mild symptoms resolve on their own, severe disease resolves with surgery

    Rarity:
    Common
    Top Symptoms:
    hand weakness, weakness in one hand, numbness in one hand, pain in one elbow, pain in one forearm
    Urgency:
    Primary care doctor
  2. 2.Pinched Nerve in the Neck

    With age, disks separating the cervical vertebrae (which are the bones of your spine in your neck) lose height as well as lose water content, becoming stiffer. The vertebrae move closer together, and nerves that exit between these bones may be pinched, causing pain to travel down the nerve as it passes through the arm. The pain is usually sharp, and some people report a "pins and needles" sensation or even complete numbness.

    Majority of patients get better with time (weeks to months).

    Rarity:
    Common
    Top Symptoms:
    pain in one shoulder, spontaneous shoulder pain, pain that radiates down arm, pain in the back of the neck, severe shoulder pain
    Urgency:
    Primary care doctor

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  3. 3.De Quervain's Tenosynovitis

    De Quervain's tenosynovitis is a painful condition affecting the tendons on the thumb side of the wrist. If you have de Quervain's tenosynovitis, you will feel pain upon turning your wrist, grasping anything, or making a fist.

    4-6 weeks with treatment

    Rarity:
    Uncommon
    Top Symptoms:
    hand numbness, thumb pain, hand weakness, weakness in one hand, numbness in one hand
    Symptoms that always occur with de quervain's tenosynovitis:
    thumb pain
    Urgency:
    Primary care doctor
  4. 4.Broken Collarbone

    The clavicle is the collar bone. Clavicle fractures are often caused by a direct blow to the shoulder, for example during a fall onto the shoulder, a car collision, or a fall onto an outstretched arm. This fracture is an extremely common bone fracture in people of all ages.

    May take several months to heal.

    Rarity:
    Uncommon
    Top Symptoms:
    constant shoulder pain, pain in one shoulder, arm weakness, shoulder pain from an injury, collarbone pain
    Symptoms that always occur with broken collarbone:
    collarbone pain, shoulder pain that gets worse with movement, difficulty moving the shoulder, collarbone bulge, constant shoulder pain
    Urgency:
    Hospital emergency room
  5. 5.Ewing Sarcoma

    Ewing sarcoma is a type of bone cancer often affecting the legs, pelvis, ribs, arms or spine. It can occur anytime during childhood and young adulthood; it is rarely seen in adults.

    Curable with total treatment lasting 8-12 months

    Rarity:
    Rare
    Top Symptoms:
    fatigue, loss of appetite, new headache, fever, rib pain
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Numbness in One Hand

  • Q.Turn your head toward the side of your body that is hurting. Lift your head up as someone else pushes down on your head. Does this cause greater pain in your upper body? (This is known as Spurling's test.)
  • Q.About your [shoulder], do you notice any of the following?
  • Q.Have someone feel for your pulse (at the wrist) on the side of your body that hurts. Now, turn your head to that side. Does the pulse go away? (This is known as the Adson's test.)
  • Q.What is your body mass?

If you've answered yes to one or more of these questions, try our numbness in one hand symptom checker to find out more.

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Numbness in One Hand Symptom Checker Statistics

  • People who have experienced numbness in one hand have also experienced:

    • 7% Pain in One Shoulder
    • 6% Pain in One Arm
    • 5% Rib Pain on One Side
  • People who have experienced numbness in one hand had symptoms persist for:

    • 42% Less Than a Day
    • 25% Over a Month
    • 16% Less Than a Week
  • People who have experienced numbness in one hand were most often matched with:

    • 35% Ulnar Nerve Entrapment of Elbow
    • 16% Pinched Nerve in the Neck
    • 1% De Quervain's Tenosynovitis
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

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