Read below about scalp itchiness, including causes and common questions. Or get a personalized analysis of your scalp itchiness 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 Scalp Itchiness

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

  1. 1.Eczema (Atopic Dermatitis)

    Eczema is a form of skin inflammation that causes skin to be dry, itchy, red, and irritated.

    This is a long-term, recurring condition but symptoms are manageable with care.

    Rarity:
    Common
    Top Symptoms:
    trouble sleeping, feeling itchy or tingling all over, dry skin, scalp itchiness, flexor surface rash
    Symptoms that never occur with eczema (atopic dermatitis):
    fever
    Urgency:
    Phone call or in-person visit
  2. 2.Ringworm of the Scalp (Tinea Capitis)

    Tinea Capitis is a fungal infection of the scalp. It often causes itching, dandruff, and sometimes bald spots. It can be transmitted from one person to another.

    Treatment will last from 4-12 weeks, but the symptoms should resolve a few weeks into treatment.

    Rarity:
    Uncommon
    Top Symptoms:
    scalp itchiness, patchy hair loss, scalp redness, scaling of the scalp, rash
    Urgency:
    Primary care doctor
  3. 3.Allergic Contact Dermatitis of the Scalp

    Allergic contact dermatitis is a condition in which the skin becomes irritated and inflamed following physical contact with an allergen. Common products known to cause allergic dermatitis include plants, metals, soap, fragrance, and cosmetics.

    1-2 days

    Rarity:
    Common
    Top Symptoms:
    scalp itchiness, scalp redness, scabbed area of the scalp
    Symptoms that always occur with allergic contact dermatitis of the scalp:
    scalp redness
    Urgency:
    Self-treatment
  4. 4.Head Lice

    Lice are tiny insects without wings that are usually found in hair, back of the neck, and behind the ears. Lice are highly contagious and prevalent in preschool & elementary school-age children.

    With proper treatment, most cases are resolved within weeks.

    Rarity:
    Rare
    Top Symptoms:
    scalp itchiness, feeling of something crawling on head
    Symptoms that always occur with head lice:
    scalp itchiness
    Urgency:
    Phone call or in-person visit

    Scalp Itchiness Checker

    Take a quiz to find out why you’re having scalp itchiness.

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  5. 5.Non - Specific Insect Bite

    Insect bites are very common. The saliva given off during the bit can sometimes cause dangerous allergic reactions that affect your ability to breathe. However, the vast majority of insect bites have no adverse effects besides the inflammation where the bite occurred.

    1 week

    Rarity:
    Common
    Urgency:
    Self-treatment
  6. 6.Mosquito Bite

    Mosquito bites are very common. They often cause itchiness and redness.

    Usually clears up within a week.

    Rarity:
    Common
    Top Symptoms:
    mosquito bite
    Symptoms that always occur with mosquito bite:
    mosquito bite
    Symptoms that never occur with mosquito bite:
    fever, muscle aches, vomiting, loss of appetite
    Urgency:
    Self-treatment
  7. 7.Normal Episode of Itchy Skin

    Itchiness is an unpleasant feeling that makes you want to scratch. It is found as a part of many diagnoses, but it can also appear on its own without a particular cause, which is the case in this diagnosis.

    This should get better on its own relatively quickly

    Rarity:
    Common
    Top Symptoms:
    feeling itchy or tingling all over
    Symptoms that always occur with normal episode of itchy skin:
    feeling itchy or tingling all over
    Urgency:
    Self-treatment
  8. 8.Seborrheic Dermatitis

    Seborrheic dermatitis is a common chronic inflammatory skin condition that causes flaky, white to yellowish scales to form on oily areas such as the scalp, face or inside the ear. It can occur with or without reddened skin. The exact cause of this condition is not known, although doctors think that some common skin yeast organisms, called Malassezia, may play a role in some people.

    Weeks to months with treatment.

    Rarity:
    Common
    Top Symptoms:
    itchy rash, red or pink, rough patch of skin, rash with well-defined border, scalp skin changes, cheek skin changes
    Symptoms that never occur with seborrheic dermatitis:
    fever
    Urgency:
    Phone call or in-person visit

Questions Your Doctor May Ask About Scalp Itchiness

  • Q.Did you possibly brush into poison ivy, poison oak, or poison sumac?
  • Q.Any fever today or during the last week?
  • Q.Did your symptoms start after you were exposed to glues, fragrances, preservatives, hair dyes, soaps, detergents, or other common household chemicals?
  • Q.Do you have a rash?

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

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Scalp Itchiness Symptom Checker Statistics

  • People who have experienced scalp itchiness have also experienced:

    • 6% Scalp Pain
    • 5% Feeling Itchy or Tingling All Over
    • 5% Scalp Bump
  • People who have experienced scalp itchiness had symptoms persist for:

    • 37% Over a Month
    • 34% Less Than a Day
    • 14% Less Than a Week
  • People who have experienced scalp itchiness were most often matched with:

    • 57% Ringworm of the Scalp (Tinea Capitis)
    • 28% Eczema (Atopic Dermatitis)
    • 14% Allergic Contact Dermatitis of the Scalp
  • Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

A.I. Health Assistant

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