Colon (colorectal) cancer often starts with subtle digestive symptoms. Know the warning signs - changes in bowel habits, rectal bleeding, unexplained anemia - and get screened starting at age 45 or sooner if you have higher risk.
Persistent cough, breathlessness, blood in sputum, chest pain, weight loss, and fatigue are common signs of lung cancer. Early evaluation, low-dose CT screening for high-risk people, accurate diagnosis with biopsy, and molecular testing guide modern treatment options including surgery, radiation, chemotherapy, targeted drugs, and immunotherapy.
The PSA blood test detects prostate-specific antigen, which can be elevated for reasons besides cancer. Use PSA results with exam findings, risk factors, and additional tests. Screening involves trade-offs - benefits of early detection versus risks of overdiagnosis and biopsy complications - so discuss options with your clinician.