An oncologist is occupied with prevention, recognition and treatment of cancerous diseases.

Visit an oncologist if the following symptoms appear:

• chronic fever of unknown origin,
• quick weight loss in a person who is not on a diet,
• bleeding from the digestive tract or other parts of the body with unknown etiology,
• chronic constipations and diarrheas,
• persistent hoarseness unrelated with an infection,
• loss of appetite,
• chronic fatigue, lack of strength,
• shortness of breath,
• tumor palpable through skin,
• enlarged lymph nodes, unrelated to infection,
• anemia in laboratory tests, despite previous supplementation with iron,
• recurrent infections of a system/organ occupied by a tumor,
• pain,
• liquid accumulating in body cavities (as revealed by image diagnostics).