Cancer – lymphoma
Risk factors: previous viral infection, heredity, immune system dysfunction, exposure to herbicides and pesticides, black hair dye, diet high in red meat, exposure to benzene.
Symptoms: depend on the location of the lymphoma – if in the abdominal area – abdominal pain, nausea and vomiting – if in the brain – headaches, vision changes and seizures – if in the bone marrow – anaemia.