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Learn about your numbness in the thumb side of the forearm, including causes and common questions. Or get a personalized analysis of your numbness in the thumb side of the forearm 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.

Numbness in the Thumb Side of the Forearm Checker

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Your Numbness in the Thumb Side of the Forearm May Also be Known as:
Can't feel thumb side of forearm
Loss of sensation on thumb side of forearm
Thumb side of forearm is numb

Top 5 Numbness in the Thumb Side of the Forearm Causes

  1. 1.Urinary Tract Infection

    In women, the opening to the urethra (the tube that carries urine from the bladder to the outside of the body) is very close to the anus, and bacteria from the anus can easily escape and travel up the urethra. These bacteria can infect the bladder, and cause what is known as a urinary tract infection (UTI).

    You should go to your doctor, an urgent care, or a walk-in clinic to be treated. UTIs must be treated with antibiotics. It is important to get treated as soon as possible to avoid the infection from becoming worse and spreading. To prevent future UTIs, urinate frequently, wipe from front to back, and urinate after sex to rinse out bacteria.

    Rarity:
    Common
    Top Symptoms:
    abdominal cramps (stomach cramps), pelvis pain, sudden urgency to urinate, urinary changes, abdominal pain (stomach ache)
    Symptoms that always occur with urinary tract infection:
    hidden: urinary changes: atrophy or inflammation
    Urgency:
    Phone call or in-person visit
  2. 2.Acute Close - Angle Glaucoma

    Acute, close-angle glaucoma is caused by a rapid or sudden increase in pressure within the eye that occasionally results in permanent blindness.

    You should proceed to an Emergency Room as prompt treatment is key to preventing optic nerve damage and vision loss.

    Rarity:
    Rare
    Top Symptoms:
    headache, nausea or vomiting, being severely ill, vision changes, blurry vision
    Urgency:
    Hospital emergency room

    Numbness in the Thumb Side of the Forearm Checker

    Take a quiz to find out why you’re having numbness in the thumb side of the forearm.

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  3. 3.Eye - Socket (Orbital) Fracture

    The middle part of the face or around the eye is fragile. A strong force hitting the area can cause a fracture, which can often hurt the surrounding soft tissue, making it an emergency to diagnose and treat.

    You should go to the ER immediately by car. There, a careful exam by the doctor and imaging (typically CT) can confirm the diagnosis. Treatment involves setting the fractured area to avoid further injury. You will possibly need surgery and antibiotics. You should NOT blow your nose, which would possibly worsen the injury.

    Rarity:
    Rare
    Top Symptoms:
    eye pain from an injury, recent eye injury, swelling of the eye area, bruised eye, eye numbness
    Symptoms that always occur with eye-socket (orbital) fracture:
    eye pain from an injury, recent eye injury
    Urgency:
    Hospital emergency room
  4. 4.Anterior Uveitis

    Uveitis is the inflammation of of the blood vessels between the back and the front of the eye. "Anterior" uveitis is inflammation of the front of the eye: the iris (the round hole that light goes through) and the ciliary body (the muscles and connective tissue behind the eye's surface). Uveitis can affect adults and children, and there's typically no cause that can be identified.

    You should go to the ER or walk-in ophthalmology clinic immediately. You cannot shrug off this "pink eye" because there's a possibility of vision loss without treatment. You must see an ophthalmologist within 24 hours for follow-up after your initial treatment.

    Rarity:
    Rare
    Top Symptoms:
    blurry vision, sensitivity to light, constant eye pain, eye redness, pain in one eye
    Symptoms that always occur with anterior uveitis:
    constant eye pain
    Urgency:
    Hospital emergency room
  5. 5.Viral (Norovirus) Infection

    Noroviruses are a group of related viruses that leads to nausea, vomiting, diarrhea, and cramps. These viruses cause gastroenteritis, an inflammation of the stomach and intestines. When the diarrhea and/or vomiting is severe, dehydration can occur. Symptoms of dehydration include a dry mouth, dizziness, urinating less frequently and dark urine.

    You can safely treat this condition at home. Make sure you drink plenty of water and fluids (Gatorade, Pediatlyte) to replace what is lost with diarrhea. If symptoms of dehydration occur or you are unable to keep down any liquids, seek care at your primary care physician or an urgent care.

    Rarity:
    Common
    Top Symptoms:
    fatigue, abdominal pain (stomach ache), nausea, headache, stomach bloating
    Symptoms that always occur with viral (norovirus) infection:
    hidden: gastroenteritis symptoms
    Symptoms that never occur with viral (norovirus) infection:
    severe abdominal pain, throbbing headache, severe headache, tarry stool
    Urgency:
    Self-treatment

Questions Your Doctor May Ask About Numbness in the Thumb Side of the Forearm

  • Q.Is your bleeding constant or come-and-go?
  • Q.How severe is your bleeding?
  • Q.How long has your bleeding been going on?
  • Q.How has the intensity of your bleeding changed over time?

If you've answered yes to one or more of these questions, check our numbness in the thumb side of the forearm symptom checker.

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Numbness in the Thumb Side of the Forearm Symptom Checker Statistics

  • People who have experienced numbness in the thumb side of the forearm have also experienced:

    • 33% Eye Pain
    • 33% Nausea
    • 33% Head Injury
  • People who have experienced numbness in the thumb side of the forearm had symptoms persist for:

    • 40% Less Than a Day
    • 22% Over a Month
    • 22% Less Than a Week
  • People who have experienced numbness in the thumb side of the forearm were most often matched with:

    • 33% Urinary Tract Infection
    • 33% Acute Close - Angle Glaucoma
    • 33% Eye - Socket (Orbital) Fracture

Numbness in the Thumb Side of the Forearm Checker

Take a quiz to find out why you’re having numbness in the thumb side of the forearm.

Take a quiz