Weakness

• People with iron-deficiency anemia will often feel weak and fatigued.
  
  

Breathing Trouble

• Shortness of breath, especially during exercise, is a common symptom of iron-deficiency anemia.
  
  

Mental State

• Difficulty concentrating and irritability are signs of iron-deficiency anemia. Dizziness and headaches are also commonly experienced.
  
  

Pale Skin

• People with iron-deficiency anemia may notice their skin becomes more pale than usual.
  
  

Pica

• Pica, or the craving of non-food items such as ice, dirt or starch, is a sign of iron-deficiency anemia.
  
  

Other Common Symptoms

• People with iron-deficiency anemia also may notice cold hands and feet, a sore tongue, a rapid heartbeat and brittle toenails and fingernails.