Iron-Deficiency Anaemia, a type of blood disorder
What is Iron Deficiency Anaemia?
Iron-deficiency anaemia is the most common form of anaemia, a condition where your blood lacks enough healthy red blood cells to carry adequate oxygen to your body’s tissues. This happens when your body doesn’t have enough iron, which is essential for producing haemoglobin; the protein in red blood cells responsible for oxygen transport.
Without enough iron, your body cannot make sufficient haemoglobin, leading to fatigue, weakness, and other health problems. While it’s a common condition, many people may have mild iron-deficiency anaemia without knowing, as symptoms can develop slowly and be subtle.
What causes iron deficiency anaemia?
Iron-deficiency anemia occurs when your body’s iron levels are too low to meet its needs. This can happen due to:
- Inadequate iron intake: A diet low in iron-rich foods such as meat, eggs, and leafy greens can cause deficiency over time.
- Blood loss: Heavy menstrual bleeding, pregnancy, or internal bleeding from ulcers, colon polyps, or gastrointestinal conditions can deplete iron stores.
- Poor iron absorption: Conditions like celiac disease or surgeries such as gastric bypass can reduce your body’s ability to absorb iron.
- Genetic factors: Some inherited conditions, including mutations affecting iron regulation (e.g., TMPRSS6 mutation), can cause iron deficiency.
- Other medical conditions: Endometriosis and uterine fibroids can cause heavy menstrual bleeding, leading to iron loss. Frequent blood donation and use of certain medications (aspirin, NSAIDs) can also contribute.
Symptoms of Iron-Deficiency Anaemia
Symptoms can vary from subtle to severe, often developing gradually. Many people may not notice mild symptoms until anaemia worsens or is detected through blood tests. Common Symptoms include:
- General fatigue and weakness
- Pale or sallow skin
- Shortness of breath, even with mild activity
- Dizziness or lightheadedness
- Cold hands and feet
- Fast or irregular heartbeat
- Headaches
- Brittle or spoon-shaped nails
- Swollen or sore tongue
- Tingling or crawling sensations in the legs (restless legs)
- Unusual cravings for non-food items like ice, dirt, or starch (known as pica)
If you experience these symptoms, consult a healthcare provider for proper evaluation.
How is Iron Deficiency Anaemia diagnosed?
Diagnosis is primarily through blood tests ordered by a healthcare provider.
Key tests include:
- Complete Blood Count (CBC): Measures hemoglobin, hematocrit, and red blood cell size. In iron-deficiency anemia, hemoglobin and hematocrit levels are low, and red blood cells are often smaller and paler than normal.
- Serum ferritin: Indicates the amount of stored iron. Low ferritin confirms iron deficiency.
- Serum iron and Total Iron-Binding Capacity (TIBC): Evaluate circulating iron and the blood’s capacity to transport iron.
- Additional tests: If internal bleeding is suspected, stool tests for hidden blood, endoscopy, colonoscopy, or pelvic ultrasound may be performed to locate the source of blood loss.
Routine screening is especially important for at-risk individuals in South Africa to catch anemia early.
How is Iron-Deficiency Anaemia treated?
Treatment focuses on replenishing iron stores and addressing the underlying cause.
Iron supplementation
- Oral iron tablets or liquid supplements are the first-line treatment and should ideally be taken on an empty stomach for better absorption.
- Vitamin C enhances iron uptake, so taking supplements with orange juice or other vitamin C sources is recommended.
- Side effects such as constipation or stomach upset are common but manageable.
Dietary improvements
Including iron-rich foods in your daily diet helps both treatment and prevention:
- Red meat, chicken, and fish
- Beans, lentils, and legumes
- Dark green leafy vegetables like spinach and kale
- Iron-fortified cereals and bread
- Dried fruits such as raisins and apricots
Vitamin C-rich foods such as oranges, tomatoes, and peppers improve iron absorption and should be part of meals.
Addressing underlying causes
- Hormonal treatments can reduce heavy menstrual bleeding.
- Surgery may be necessary for conditions like fibroids or gastrointestinal bleeding.
- In severe cases, intravenous iron or blood transfusions may be required for rapid correction.
Who is at risk in South Africa
Women are particularly vulnerable due to menstrual blood loss and increased iron needs during pregnancy. Heavy or prolonged menstrual bleeding can double iron loss compared to typical periods, increasing the risk of anaemia. Conditions such as uterine fibroids and endometriosis often cause excessive bleeding but may remain undiagnosed. Certain groups have a higher risk of developing iron-deficiency anaemia:
- Women of childbearing age, especially those with heavy menstrual periods
- Pregnant and breastfeeding women
- Infants, young children, and teenagers experiencing rapid growth
- Vegetarians or vegans who don’t consume adequate iron-rich foods
- Older adults (over 65 years)
- Frequent blood donors
- People with chronic medical conditions affecting iron absorption or causing bleeding
- High-performance athletes with increased iron demands
If you fall into these categories, regular check-ups and dietary monitoring are recommended.
Living with Iron Deficiency Anaemia in South Africa
Prevention involves maintaining a balanced diet rich in iron and vitamin C and managing health conditions that cause blood loss. For infants, breastfeeding or iron-fortified formulas and introducing iron-rich foods after six months are important.
If you have heavy periods or a medical condition affecting iron absorption, regular check-ups and blood tests can help catch anemia early.
