Blood Disorders

Understanding Blood Disorders

Blood disorders are medical conditions that affect the components of your blood; red blood cells, white blood cells, platelets, or plasma. These elements play vital roles: carrying oxygen, fighting infections, and controlling bleeding. When something goes wrong in the blood-making process, or when blood cells function abnormally, it can lead to serious health issues.

Unlike blood cancers, which involve the uncontrolled growth of abnormal blood cells, blood disorders are often about the inability of the bone marrow to produce healthy cells or the destruction of those cells once produced. Some blood disorders are inherited from birth, while others develop later in life due to environmental, immune, or unknown causes.

Common symptoms of serious Blood Disorders

1. Low Blood Cell Counts (Pancytopenia) Many blood disorders result in a drop in the production of all types of blood cells:

• Low red blood cells (anemia): Can cause fatigue, pale skin, dizziness
• Low white blood cells (leukopenia): Increases the risk of infections
• Low platelets (thrombocytopenia): Leads to easy bruising or bleeding

2. Bone Marrow Failure Blood cells are made in the bone marrow; the soft tissue inside bones. In blood disorders like Fanconi Anaemia and Severe Aplastic Anaemia, the bone marrow stops working properly, either due to damage or inherited defects. This failure causes a shortage of healthy blood cells.

3. Increased Risk of Infections, Bleeding, and Fatigue. Because the immune system and oxygen transport rely on healthy blood cells, people with blood disorders are more likely to get infections, experience frequent bleeding (such as nosebleeds or gum bleeding), and feel extremely tired even after rest.

4. Need for Long-Term Medical Care People living with these conditions often require:

• Frequent blood tests
• Blood or platelet transfusions
• Antibiotics or antifungal treatments
• Specialized bone marrow or stem cell transplants

How are blood disorders diagnosed?

Early diagnosis can be life-saving. Diagnosis usually involves a combination of:

• Complete Blood Count (CBC): Measures red cells, white cells, and platelets
• Bone Marrow Biopsy: Examines a sample of bone marrow to see how well it's working
• Genetic Testing: Identifies inherited mutations that cause disorders and diseases

Some children are diagnosed shortly after birth; others show signs later in life such as persistent tiredness, repeated infections, or unexplained bruising.

Causes and risk factors

Some blood disorders are inherited, meaning they are passed from parent to child through genes. Others are acquired, meaning they develop later in life due to:

• Viral infections (like hepatitis or Epstein-Barr)
• Exposure to toxins or radiation
• Autoimmune conditions
• Unknown causes

While some people are at higher risk due to their genetic background, anyone can develop a serious blood disorder. In South Africa, poverty-related factors like poor nutrition, limited access to early diagnosis, and untreated infections can also worsen outcomes.

Living with a Blood Disorder

Blood disorders affect every part of life, from energy levels to the ability to go to school or work. But with the right care, many people live full lives. Management may include:

• Treatment from haematologists
• Preventative care to avoid infections
• Blood transfusions or transplants
• Emotional and psychological support
• Family education and genetic guidance

If you or a loved one has been diagnosed with a blood disorder, know that you are not alone and that support, treatments, and hope are available.