Quick Answer
Blood cancers can hide behind common symptoms. Learn the warning signs, the tests that matter and when to see a haematologist.
Medically reviewed by Dr. Sachita Baniya • NMC 20158 • Kathmandu Neurology Clinic & Cognitive Center
Blood cancers — leukemia, lymphoma and multiple myeloma — often begin with symptoms that overlap with ordinary illness. Fatigue, fever, bruising or swollen glands can have many causes, and most of the time the cause is not cancer. But some patterns deserve a haematology opinion rather than repeated courses of antibiotics or iron tablets.
What blood cancers have in common
Blood cancers arise from cells of the bone marrow, lymph nodes or plasma cells. When abnormal cells crowd the marrow, normal red cells, white cells and platelets fall. When lymphocytes grow abnormally, lymph nodes, spleen and other organs may enlarge. When plasma cells produce abnormal protein, the kidneys, bones and nerves can be affected.
Symptoms that deserve attention
- Persistent fatigue or breathlessness that is not explained by lifestyle or a known cause.
- Easy bruising, petechiae or bleeding — especially gum bleeding, nosebleeds or blood in stool or urine.
- Fever or recurrent infections, particularly if blood counts are abnormal.
- Painless, persistent lymph node swelling in the neck, armpit or groin.
- Bone pain, especially back or rib pain that is new or progressive.
- Unexplained weight loss or drenching night sweats.
- An abnormal blood count found on a routine test — high or low white cells, anaemia, low platelets or a raised protein level.
What the first tests involve
A haematology assessment starts with a full blood count and peripheral smear review. The pattern of abnormality often suggests the next step. Additional tests may include iron studies, vitamin B12 and folate, protein electrophoresis, flow cytometry, bone marrow examination, cytogenetics and molecular testing. Not every patient needs all of these — the goal is to choose tests that will change the diagnosis or plan.
When to seek urgent care
Go to an emergency department for fever with low blood counts, severe bleeding, sudden breathlessness, new confusion, or a rapidly growing mass. These are not symptoms to watch at home.
What a haematologist will ask
Expect questions about the timeline, previous blood counts, medications, family history, bleeding and infections, and any recent imaging or biopsies. Bring every report you have, even if it seems minor. A single old blood count can be more informative than a new one because it shows the trend.
The bottom line
Most people with fatigue or bruising do not have blood cancer. But persistent or unexplained abnormalities deserve a structured haematology review. Early diagnosis can make treatment safer and more effective — and when the cause is benign, a clear explanation is equally valuable.
Frequently asked questions
Answers reviewed by Dr. Jitendra Prasad Yadav • MBBS, MD (Internal Medicine), FICN (Neurology), FCNV, FIHM • NMC 8029
AML can be cured in a proportion of patients, particularly younger adults who achieve remission and proceed to appropriate consolidation or transplant. Outcomes vary widely with genetic subtype, age and fitness, so the treating team discusses prognosis for the individual case rather than giving a single figure.
Induction is the first phase of treatment, aiming to clear leukemia cells from the marrow and restore normal blood production. It usually requires hospital admission and close support with transfusion, infection prevention and monitoring.
Hodgkin lymphoma contains Reed-Sternberg cells and has a distinct spread pattern and treatment. Non-Hodgkin lymphoma includes many subtypes with different biology and treatment.
Many aggressive subtypes can be cured with modern therapy, while indolent subtypes are often controlled for years. The outlook depends on subtype, stage and response.
More: All FAQs → · Ask Dr. Jitendra →
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References & Review
Reviewed by Dr. Jitendra Prasad Yadav • Last reviewed: 2026-11-10
- International Classification of Headache Disorders, 3rd edition (ICHD-3).
- Harrison's Principles of Internal Medicine — Neurology sections.
- American Academy of Neurology guidelines for selected conditions (where applicable).
Content is educational and aligns with standard medical references; individual evaluation may vary. External links provide context and do not imply endorsement.