Low Iron: Symptoms, Causes, and What It May Mean

Low iron is a very common lab problem and one of the leading causes of fatigue and iron deficiency anemia. Iron is needed to make healthy red blood cells and carry oxygen around the body.

If you want help understanding a low iron result, try our lab results analyzer.

Common Symptoms of Low Iron

Low iron may cause:

• fatigue
• weakness
• dizziness
• headaches
• reduced exercise tolerance
• hair shedding
• restless legs

Common Causes

Blood Loss

Heavy menstrual bleeding and gastrointestinal blood loss are common causes.

Low Intake

Not getting enough iron from food can contribute.

Pregnancy

Iron needs increase during pregnancy.

Absorption Problems

Some digestive conditions make iron harder to absorb.

When to Follow Up

Low iron deserves follow-up if:

• symptoms are present
• ferritin is low
• anemia is developing
• fatigue is significant

Bottom Line

Low iron is common and often treatable, but it is important to understand why the level is low, especially if anemia or significant symptoms are present.

Use our lab results analyzer to better understand what low iron may mean.

This article is for educational purposes only and does not replace professional medical advice.