Squamous cell carcinoma (SCC) is a skin cancer arising from flat, scale-like squamous cells. Common in sun-exposed areas, it can also occur in mucous membranes. Risk factors include UV exposure, chemicals, weakened immunity, and age. Symptoms include persistent nodules, scaly patches, or non-healing ulcers. Early detection is vital. Treatment involves surgery, radiation, or other therapies based on the cancer's stage and location. Sun protection and regular skin checks help prevent SCC. Consult a healthcare professional for concerns or changes in skin appearance.