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Blood Cancers: Symptoms, Causes, Types, and Modern Treatment Options

By Dr. Faran Naim in Bone Marrow Transplant , Paediatric Haematology

Jan 05 , 2026 | 2 min read

Blood cancers, also known as haematological malignancies, are serious diseases that affect the production and function of blood cells. They interfere with the body’s ability to fight infections, maintain adequate platelet counts, and produce healthy red blood cells. This leads to poor immunity, increased infection risk, bleeding tendencies, and severe fatigue.

Under normal conditions, stem cells in the bone marrow mature into three types of blood cells:

Red blood cells that carry oxygen
White blood cells that fight infections
Platelets that help in clotting

In blood cancers, this process is disrupted by the uncontrolled growth of abnormal blood cells. These abnormal cells prevent the blood from performing its essential functions effectively.

Symptoms to Watch For

Blood cancers can present with a wide range of symptoms, which may include:

Fatigue and weakness
Fever or chills
Frequent infections
Easy bruising or bleeding
Swollen lymph nodes
Unexplained weight loss
Shortness of breath
Night sweats
Bone pain or fractures

In some cases, visible swelling of lymph nodes in the neck or other areas may also occur.

Possible Causes

The exact cause of blood cancers is still not clearly understood. However, certain factors may increase the risk:

Advancing age
Family history of blood cancers
Smoking
Previous cancer treatments
Exposure to certain harmful chemicals

Types of Blood Cancers

The three main types of blood cancers include:

Leukaemia: Cancer of the blood and bone marrow
Lymphoma: Cancer of the lymphatic system
Myeloma: Cancer of plasma cells in the bone marrow

Treatment Options

Treatment depends on the specific type and stage of blood cancer, as well as the patient’s overall health. Common treatment options include:

Chemotherapy: Medications that destroy cancer cells
Targeted therapy: Drugs designed to specifically attack cancer cells with fewer side effects
Radiation therapy: Used to control or shrink cancer growth
Immunotherapy: Boosting the immune system to fight cancer cells
Bone marrow or stem cell transplant: Replacing damaged bone marrow with healthy stem cells

Timely and accurate diagnosis is important for improving outcomes. Blood cancers, such as acute lymphoblastic leukaemia (especially in children) and Hodgkin’s lymphoma, have very high cure rates when treated promptly.

Bone Marrow and Stem Cell Transplants

A bone marrow or stem cell transplant can be life-saving for many patients with blood cancers and other serious blood disorders, such as aplastic anaemia, thalassemia, and sickle cell anaemia.

There are two main types of transplants:

Autologous transplant: Uses the patient’s own stem cells, collected before high-dose treatment and reintroduced afterwards
Allogeneic transplant: Uses stem cells from a matched donor (sibling, parent, or unrelated donor)

The collection process for stem cells is done through blood using special machines, without the need for surgery.

Why Early Diagnosis Matters

Early diagnosis and treatment are necessary to improve survival rates and quality of life. Even in advanced stages, many blood cancers can now be managed effectively with modern therapies.

Conclusion

Blood cancers are complex but treatable with timely and appropriate medical care. Advances in targeted therapies, immunotherapies, and bone marrow transplants have significantly improved survival rates and quality of life for patients. Awareness of symptoms, r

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