Early signs of cancer Ulcers on any part of the body, such as the tongue, oral mucosa, or skin without trauma, especially if they persist for a long time. Lumps anywhere on the body, such as the breast, neck or abdomen, especially if they grow gradually. Painless hematuria. Irregular vaginal bleeding or increased discharge in women over middle age. Stuffiness, burning pain, foreign body sensation or progressively worsening swallowing obstruction behind the sternum when eating. Chronic low-grade fever, prolonged dry cough or blood in sputum. Chronic dyspepsia, progressive loss of appetite, and weight loss without a clear cause. Change in stool habit or blood in stool. Nasal congestion, epistaxis, unilateral headache or with diplopia. Sudden growth or breakage or bleeding of the nevus, loss of hair on the nevus. Unexplained hoarseness of voice. Unexplained tinnitus. Unexplained unilateral or bilateral limb weakness or movement disorder. Precancerous lesions: white spots on mucous membranes, chronic skin ulcers, fistulas, proliferative scars (especially due to chemical burns), atrophic gastritis, multiple polyps in the colon, skin keratosis (especially at the size of the fissure), cystic lobular hyperplasia of the breast, cervical erosion, cervical polyps, etc.