An oncological consultation is necessary for any alarming symptoms, especially if there is a family history of cancer. You should see a doctor if you notice:
- lumps, nodes, or new growths;
- spots, ulcers, or moles on the skin or mucous membranes that change in shape or color;
- recurring unexplained pain;
- sudden weight loss without dieting;
- weakness, chronic fatigue, or anemia.