Overview
Common Symptoms
- Constant fatigue
- Easy bruising
- Localized pain
- Unexplained fever
- Weight loss
- Lumps or swelling
Treatments
Chemotherapy
Radiation Therapy
Sources and medical information
Prepared by Tutti Cancer Warriors
Sources checked: 29 July 2026
This page provides general educational information. It does not replace medical advice, diagnosis or treatment from a qualified healthcare professional. Childhood cancers are a diverse group of diseases and may differ from adult cancers in how they develop, spread and respond to treatment. Symptoms vary by cancer type and may have many other causes. Contact a healthcare professional about persistent, unexplained or worsening changes in a child’s health, including unusual swelling, pain, bleeding or bruising, fever, fatigue, weight loss, headaches, vomiting, vision changes or neurological symptoms. WHO estimates that about 400,000 children and adolescents aged 0–19 develop cancer each year. In high-income countries, more than 80% of children with cancer are cured, while in most low- and middle-income countries fewer than 30% are cured. These population figures cannot predict an individual outcome; prognosis depends on the cancer type, age, biology, stage, access to specialist care and response to treatment.
Official sources
- World Health Organization — Childhood cancer fact sheet
- World Health Organization — Global Initiative for Childhood Cancer
- International Agency for Research on Cancer — Childhood cancer
- National Cancer Institute — Childhood Cancers
- National Cancer Institute — Cancer in Children and Adolescents