Hypothyroidism (Low Thyroid Hormone Level) Signs and Symptoms

Symptoms of hypothyroidism in infants can include:

• Constipation
  
• Poor feeding
  
• Poor growth
  
• Jaundice (yellow discoloration of the skin and eyes)
  
• Excessive tiredness

Symptoms of hypothyroidism in children include:

• Symptoms similar to adult symptoms
  
• Excessive fatigue
  
• Poor growth
  
• Poor school performance

Symptoms of hypothyroidism in adults include:

Early symptoms

• Easy fatigue, exhaustion
  
• Poor tolerance to cold temperatures
  
• Constipation
  
• Carpal tunnel syndrome (pain at the wrists and numbness of the hands)

Advanced  symptoms

• Poor appetite
  
• Weight gain
  
• Dry skin
  
• Hair loss
  
• Intellectual ability worsens
  
• Deeper, hoarse voice
  
• Puffiness around the eyes
  
• Depression
  
• Irregular menstrual periods or lack of menstrual periods