Signs & Symptoms of Cancer

Overview

Cancer symptoms vary widely based on tumor location, histological type, organ involvement, and stage of disease. Because early symptoms can be subtle and overlap with benign conditions, prompt recognition of persistent changes is critical for early diagnosis and improved therapeutic outcomes.

General Constitutional Signs & Symptoms

Site-Specific Warning Signs

Breast Oncology

• Palpable solitary firm lump in breast or axillary lymph nodes.
• Nipple inversion, spontaneous serosanguinous discharge, or skin dimpling (peau d'orange).

Thoracic & Lung Oncology

• Chronic non-resolving cough lasting more than 3 weeks.
• Hemoptysis (coughing up blood or blood-streaked sputum).
• Progressive shortness of breath, localized chest wall pain, or persistent hoarseness.

Gastrointestinal & Colorectal Oncology

• Bright red rectal bleeding or dark, tarry stools (melena).
• Persistent abdominal cramping, bloating, early satiety, or nausea.
• Iron-deficiency anemia of unexplained origin.

Urological & Prostate Oncology

• Weakened urinary stream, nocturia, dysuria, or pelvic discomfort.
• Visible blood in urine (hematuria) or semen.
• Painless testicular mass or scrotal swelling.

Dermatological Oncology (ABCDE Criteria for Melanoma)

• Asymmetry: One half of the lesion does not match the other.
• Border: Edges are irregular, notched, scalloped, or blurred.
• Color: Uneven shades of brown, black, tan, red, or white.
• Diameter: Greater than 6 millimeters (pencil eraser size).
• Evolving: Any mole that changes in size, shape, surface elevation, or starts bleeding/itching.

Head & Neck Oncology

• Non-healing oral ulcer lasting longer than two weeks.
• Persistent sore throat, difficulty swallowing (dysphagia), or painless neck mass.
• White (leukoplakia) or red (erythroplakia) mucosal patches inside the mouth.

When to Seek Immediate Medical Evaluation

You should schedule an evaluation with your healthcare provider if you experience:

• Any symptom that persists for more than 2 to 3 weeks without an identifiable cause.
• A newly discovered palpable lump or lymph node enlargement.
• Unexplained bleeding from any organ system (rectal, vaginal, urinary, or respiratory).
• Sudden, rapid deterioration in baseline physical functional status.