Recognizing Hunter syndrome

Signs and Symptoms

Learn about how Hunter syndrome presents itself and the signs and symptoms that are commonly seen through those effected by the condition. 

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Though the disease is present at birth, symptoms become more apparent as the accumulation of GAGs builds within the body, triggering a diagnosis usually between 2 to 4 years old. Most boys with Hunter syndrome continue to develop physically and cognitively until between the ages 2 and 5 and then begin regressing. These boys gradually lose the ability to talk, walk and eat. Most do not live to see their teen years. Approximately 20% of those affected by Hunter syndrome do not suffer cognitive impairments or regression and may have normal intelligence but a continuum of physical symptoms.

HUNTER SYNDROME

A Quick Look

Hunter syndrome is a rare genetic disease that is progressively debilitating, life-limiting and without a cure. It occurs almost exclusively in males and currently affects approximately 500 boys in the U.S. and less than 2,000 worldwide.

Icon for: 2-4 Years of Age Typical Age of Diagnosis
2-4
Years of Age
Typical Age of Diagnosis
Icon for: 20% Of Boys Affected Don't Suffer Cognitive Impairments of Regression
20%
Of Boys Affected
Don't Suffer Cognitive Impairments of Regression

SIGNS AND SYMPTOMS

Recognizing Hunter syndrome

These symptoms may not be present at birth and generally become noticeable within 2 to 4 years of age: 

  • Runny Nose 
  • Colds 
  • Recurrent Ear Infections 
  • Joint Stiffness 
  • Numbness or Weakness in Hands 
  • Breathing Problems such as Sleep Apnea 
father holding smiling young boy

SIGNS AND SYMPTOMS

The Physical Attributes

Typically, boys affected by Hunter syndrome present distinct physical features.

  • Large, Round Cheeks
  • Coarse Facial Features or Tough Skin
  • Enlarged Abdomen, Tongue and Tonsils
  • Bushy Eyebrows
  • Broad Nose
  • Large Head
  • Slowed Growth

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