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Learn about your abnormally small head, including causes and common questions. Or get a personalized analysis of your abnormally small head from our A.I. Symptom Checker. At Buoy, we build tools that help you know what’s wrong right now and how to get the right care.

Your Abnormally Small Head May Also be Known as:
Baby has a small head

Top 3 Abnormally Small Head Causes

  1. 1.Fetal Alcohol Syndrome

    Fetal alcohol syndrome (FAS) is one of a group of conditions, called fetal alcohol spectrum disorders, that children are born with when the mother has been drinking alcohol while pregnant. Alcohol in the mother's blood can pass through the placenta into the womb, and can damage the baby in a variety of ways depending on the part which is developing at the time.

    This diagnosis needs evaluation and confirmation by a physician. There is no specific treatment but counseling may be helpful to prevent behavioral problems later in life.

    Rarity:
    Uncommon
    Top Symptoms:
    recent increase in crying, tremor, slower than normal growth, difficulty with coordination, mental disability
    Urgency:
    Primary care doctor

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  2. 2.Cri - Du - Chat Syndrome

    Cri du chat syndrome is a group of symptoms that result from missing a piece of chromosome number 5. The syndrome’s name is based on the infant’s cry, which is high-pitched and sounds like a cat.

    This diagnosis is typically diagnosed at birth.

    Rarity:
    Rare
    Top Symptoms:
    low muscle tone, developmental delay
    Symptoms that always occur with cri-du-chat syndrome:
    mental disability, developmental delay
    Urgency:
    Primary care doctor
  3. 3.Fanconi Anemia

    Anemia is the lack of blood cells. Bone marrow is responsible for producing red cells, white cells, and platelets, and sometimes, the bone marrow can not work.

    You should visit your primary care physician in the next 2 weeks to check your blood counts.

    Rarity:
    Rare
    Top Symptoms:
    unexplained bruising, developmental delay, thumb deformity, abnormally small head, slower than normal growth
    Urgency:
    Primary care doctor

Questions Your Doctor May Ask About Abnormally Small Head

  • Q.Have you experienced any nausea?
  • Q.If you can remember, were you delivered early, on time, or late?
  • Q.Are you able to hold eye contact for more than 2 seconds and use facial expressions and body language to communicate?
  • Q.Is your thumb abnormally small or missing?

If you've answered yes to one or more of these questions, check our abnormally small head symptom checker.

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Abnormally Small Head Symptom Checker Statistics

  • People who have experienced abnormally small head have also experienced:

    • 14% Moving Excessively
    • 14% Tendency to Often Break Rules
    • 14% Trouble Speaking
  • People who have experienced abnormally small head were most often matched with:

    • 50% Fanconi Anemia

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