Testicular cancer is the most common cancer in men aged 15 to 45. It has doubled in incidence over the past 40 years. Testicular cancer is typically found as a painless scrotal mass and is subdivided into seminoma and non-seminoma, with germ cell tumors being the most common type. Treatment involves removing the testicle with the mass through orchiectomy. Further treatment with surgery, radiotherapy or chemotherapy depends on the cancer's stage and response to initial treatment. Patients are monitored after primary treatment for recurrence, complications, and fertility issues.