Read below about numbness in one thigh, including causes and common questions. Or get a personalized analysis of your numbness in one thigh 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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A.I. Health Assistant Causes for Numbness in One Thigh

Updated on Aug. 29, 2018

The list below shows results from the use of our A.I. Health Assistant by Buoy users who experienced numbness in one thigh. This list does not constitute medical advice.

  1. 1.Piriformis Syndrome

    Piriformis syndrome is a condition when a muscle spanning the lower spine to the top of the thighbone presses upon the sciatic nerve, causing pain and numbness.

    1-2 months

    Rarity:
    Common
    Top Symptoms:
    pelvis pain, butt pain, pain when passing stools, leg numbness, hip pain
    Symptoms that never occur with piriformis syndrome:
    involuntary defecation, leaking urine
    Urgency:
    Primary care doctor
  2. 2.Herniated (Slipped) Disk in the Lower Back

    The backbone, or spine, is made up of 26 bones called vertebrae. In between the bones are soft disks filled with a jelly-like substance. These disks cushion the vertebrae and keep them in place. Although people talk about a slipped disk, nothing actually slips out of place. The outer shell of the disk ruptures, and the jelly-like substance bulges out. It may be pressing on a nerve, which is what causes the pain.A slipped disk is more likely to happen due to strain on the back, such as during heavy lifting, and older individuals are at higher risk.

    The pain associated with a slipped disk usually goes away within six weeks. If the pain lasts longer, consult a doctor. They may send you to see a back specialist for an MRI of your spine, and surgery may be considered.

    Rarity:
    Common
    Top Symptoms:
    lower back pain, moderate back pain, back pain that shoots down the leg, back pain that gets worse when sitting, leg weakness
    Urgency:
    Primary care doctor
  3. 3.Groin Nerve Irritation

    There are several nerves supplying the groin, inner thigh and genital region. Entrapment or irritation of one of these nerves can result in pain or numbness in this area. This is often caused by surgery in this area but can happen without a specific cause as well.

    Resolution of symptoms depends on cause and extent of the neuralgia.

    Rarity:
    Rare
    Top Symptoms:
    thigh numbness, groin numbness, testicle numbness, sharp testicle or scrotum pain, sharp groin pain
    Urgency:
    Primary care doctor
  4. 4.Thigh Nerve Issue (Meralgia Paresthetica)

    Meralgia paresthetica is a nerve condition that causes an area of skin over the upper outer thigh to feel numb, tingly, or painful. This is caused by compression of a nerve known as the lateral cutaneous nerve of the thigh as it passes underneath a tough fibrous ligament known as the inguinal ligament.

    Pain and pins-and-needles feeling resolves with time. Sometimes numbness and altered sensation remains for life.

    Rarity:
    Rare
    Top Symptoms:
    pain in the outside of the hip, pain in one thigh, thigh numbness, tingling upper leg, hip numbness
    Symptoms that never occur with thigh nerve issue (meralgia paresthetica):
    new headache, swollen hip, swollen hips, swelling of one hip, leg swelling, weakness of both legs, leg weakness, leaking urine
    Urgency:
    Primary care doctor

    Numbness in One Thigh Checker

    Take a quiz to find out why you’re having numbness in one thigh.

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  5. 5.Sciatica

    The sciatic nerve is the largest nerve of the human body, and it runs through the buttock, down the thigh and into the calf, sending information to the muscles in the back of the thigh and leg, as well as the surrounding skin. The sciatic nerve itself is supplied by nerves coming from the spine in the lower back. Sometimes, one of the disks separating the vertebrae (bones of the spine) may bulge out a little bit, putting pressure on one of these nerve roots, causing sciatica, or shooting pain down the sciatic nerve.

    Problem will resolve itself within several weeks in 80-90% of cases.

    Rarity:
    Common
    Top Symptoms:
    back pain, back pain that shoots down the leg, numbness in one foot, pain in one leg, numbness in one thigh
    Symptoms that always occur with sciatica:
    back pain that shoots down the leg
    Urgency:
    Self-treatment
  6. 6.Compartment Syndrome

    Compartment syndrome is a serious condition that involves increased pressure in a muscle compartment. It can lead to muscle and nerve damage and problems with blood flow.

    Prognosis is highly variable after surgery and depends on how rapidly you are treated.

    Rarity:
    Rare
    Top Symptoms:
    arm numbness, hand numbness, foot numbness, pain in one leg, thigh numbness
    Urgency:
    Hospital emergency room
  7. 7.Stroke or Tia (Transient Ischemic Attack)

    A stroke is a medical emergency. Strokes happen when blood flow to the brain is stopped.

    Indefinite

    Rarity:
    Common
    Top Symptoms:
    dizziness, leg numbness, arm numbness, new headache, stiff neck
    Symptoms that never occur with stroke or tia (transient ischemic attack):
    bilateral weakness
    Urgency:
    Emergency medical service
  8. 8.Copper Deficiency

    Copper is a mineral that keeps the body healthy. The body doesn't need much copper; however, some people may not get enough in their diet.

    Days with treatment

    Rarity:
    Ultra rare
    Top Symptoms:
    sudden urgency to urinate, difficulty walking, numbness in both hands, muscle stiffness/rigidity, numbness in both thighs
    Urgency:
    Primary care doctor
  9. 9.Spinal Stenosis

    The spine, or backbone, protects the spinal cord and allows people to stand and bend. Spinal stenosis causes narrowing in the spine. The narrowing puts pressure on nerves and the spinal cord and can cause pain.

    Indefinite

    Rarity:
    Common
    Top Symptoms:
    lower back pain, back pain that shoots down the leg, back pain that shoots to the butt, difficulty walking, thigh pain
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Numbness in One Thigh

  • Q.Lie down. Have someone hold onto your foot on the affected side and try to rotate the foot inward. Does this cause pain?
  • Q.Do your symptoms improve with activity (moving around and such)?
  • Q.Do your symptoms worsen when sitting?
  • Q.What is your body mass?

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

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Numbness in One Thigh Symptom Checker Statistics

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

    • 12% Lower Back Pain
    • 8% Pain in One Thigh
    • 4% Tingling Upper Leg
  • People who have experienced numbness in one thigh had symptoms persist for:

    • 36% Less Than a Day
    • 27% Over a Month
    • 20% Less Than a Week
  • People who have experienced numbness in one thigh were most often matched with:

    • 33% Piriformis Syndrome
    • 33% Herniated (Slipped) Disk in the Lower Back
    • 33% Groin Nerve Irritation
  • 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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