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signs and symptoms of cancer

The signs and symptoms depend upon the body part affected by the disease. The primary tumour or spread of tumour to lymph nodes or distant parts of the body may cause symptoms. In general, cancer has a tendency to start as a nodule or mass of tissue, which keeps on growing. The growth rate of cancers is variable, with some growing very rapidly and others growing slowly. With further growth, cancers which affect external or internal body surfaces can form wounds or ulcers, leading to dirty discharge, bleeding etc