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Acute lymphoblastic leukemia is the most common cancer affecting children. It is a rapidly progressing cancer where the bone marrow produces too many immature, abnormal white blood cells (lymphoblasts), which prevents the body from making healthy red cells, white cells, and platelets.
read more about acute lymphoblastic leukemia for children ...The exact cause in most children is unknown, though certain genetic syndromes can increase the risk. The cancer grows quickly, demanding immediate diagnosis and treatment to prevent widespread organ damage caused by the accumulation of lymphoblasts.
Symptoms in children often include recurring fevers without an obvious cause, pale skin, and unusual tiredness. Many children complain of bone or joint pain, which can make them reluctant to walk or play. Easy bruising and bleeding are frequent, along with swollen lymph nodes or an enlarged abdomen caused by liver or spleen enlargement. Some children experience headaches or vomiting if the central nervous system is affected.
Leukemia in children can impact eye health due to cell infiltration and bleeding. Accumulation of leukemia cells in the retina or the tissue around the eye can cause proptosis (bulging of the eye), swelling, and retinal hemorrhages, sometimes requiring immediate ophthalmic intervention.
Treatment is rigorous and highly effective. It involves three main phases of chemotherapy: induction (to kill most cells), consolidation (to kill residual cells), and maintenance (to prevent relapse). Many children achieve remission and are cured.
The long-term outlook for childhood ALL is highly positive, with cure rates reaching 90 percent. However, children require extended monitoring for late effects of chemotherapy and for signs of relapse, necessitating close follow-up with their medical team.
No, leukemia is caused by cellular mutations and is not contagious.
It is rarely hereditary, but having a sibling with acute lymphoblastic leukemia slightly increases the risk.
While eye involvement can be serious, most eye symptoms are manageable with immediate treatment of the underlying cancer, preventing permanent vision loss.
If your child complains of "cloudy" vision or you notice a white glow in their pupil (leukocoria) during leukemia treatment, consult a pediatric ophthalmologist. Early detection of leukemic infiltration in the eye can preserve sight.
National Cancer Institute. Childhood ALL (cancer.gov). 2025.
American Cancer Society. Leukemia in Children (cancer.org). 2025.
Mayo Clinic. Pediatric Leukemia Symptoms (mayoclinic.org). 2024.
MedlinePlus. Childhood Leukemia (medlineplus.gov). 2025.