Home Disease awareness What you need to know about Bone Marrow Failure

What you need to know about Bone Marrow Failure

by Dr. Shola Toye

What is bone marrow?

• Bone marrow is a type of spongy tissue in the center of bones
• It is a soft gelatinous tissue that fills he medullary cavities, the centers of bones
• It is most concentrated in the spine, hip and thigh bones
• It contains immature cells, called stem cells
• On the average, bone marrow constitutes 4% of the total body mass of humans
• Bone marrow produces 200 billion new red blood cells every day, along with white blood cells and platelets

There are 2 types of bone marrow:

– Red marrow (myeloid tissue)
– Yellow tissue (fatty tissue)

Functions of the bone marrow

• Blood cell production from differentiation of hematopoietic stem cells in red bone marrow; red blood cells, white blood cells and platelets
• The bone marrow also has a lymphatic role via the production of lymphocytes which functions in combating infections
• Bone marrow sustains the bones.

Photo credit: Canva

Abnormalities involving the bone marrow:

• Since the bone marrow is crucial in producing blood cells, problems and disease of the bone marrow will result in blood-related conditions or cancers
• Many of these conditions such as leukemia and aplastic anemia affect the number of blood cells produced in bone marrow

Clinical features of diseases of abnormal bone marrow may include,

• Fever
• Fatigue and weakness
• Increased susceptibility to infections
• Shortness of breath
• Dizziness
• Pallor
• Easy bleeding and bruising
• Low white blood cells
• Low platelets

Some diseases of the bone marrow:

• Aplastic anaemia
• Malignancies- multiple myeloma
• Infections – tuberculosis
• Various forms of leukemia
• Myeloproliferative disorders

Investigations of bone marrow in health and disease:

Photo credit: Canva

• Baseline tests: Full blood count and differential
• Peripheral blood film
• ESR and C-reactive protein
• Definitive tests: Bone marrow examination (aspiration or biopsy) Bone Marrow Transplantation (BMT):
• A procedure to treat patients with life-threatening blood, immune or genetic disorders like leukemias
• BMT replaces the unhealthy blood-forming cells with healthy ones, hence also known as Stem Cell Transplantation (SCT)
• It can be autologous (own cells transplant) or allogeneic (cells from another person transplant)
• There is however the risk of Graft versus Host Disease (GVHD)

In conclusion, the roles of the bone marrow in maintaining the health and well being of humans cannot be overemphasized. Several diseases pose a threat to bone marrow and prevent it from turning stem cells into essential cells.
Many people with blood cancers, such as leukemia and lymphoma, sickle cell anaemia and other life-threatening diseases rely on bone marrow or cord blood transplants to survive.

If you or a loved one is suffering from a bone marrow disease and requires a transplant, consider using KompleteCare’s Overseas Medical Care. We connect patients to the best care possible.

Dr. Shola Toye

Dr. Shola Toye (MBBS, MWACP) is the Senior Registrar, Department of Family Medicine, National Hospital, Abuja

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