Step 4: Read and complete the decision guide to learn more about your symptoms.
Unexplained Weight Loss in Children
Problems with the immune system can lead to weight loss. Call your doctor for an appointment in the next few days. There are many different diseases and conditions that can affect the immune system, so your doctor may want to do some tests and possibly refer you to a specialist.
Please provide feedback to help us improve the Drugs.com Symptom Checker.