Lymphoma is a cancer that starts in a person’s lymphatic system, a network of vessels and organs that help transport a clear and vital liquid known as lymph throughout an individual’s body. Lymph is responsible for collecting excessive amounts of fluids from one’s body tissues and returning them to the bloodstream to maintain circulation. While children developing lymphoma is generally rare, one must be wary of some early warning signs. Night sweats Children will show first signs of lymphoma in the form of night sweats. This happens because the body’s temperature is raised by the lymphoma cells. The lymphoma cells produce various chemicals that dramatically raise a person’s body temperature. To offset that, sweating is a common reaction during the night to cool the various systems down. While the cooling happens successfully, children will likely leave their sheets, clothes, and blankets soaking wet. Swollen lymph nodes Parents of children with early-stage lymphoma will notice a lump or multiple lumps that will not go away even after a month or two. Medical professionals label these lumps as swollen lymph nodes. Often, these lumps emerge in a child’s skin if they have some infection. However, they go away after their health is restored.