The most common malignant tumors in young men are testicular cancer, lymphomas, melanoma, primary brain tumors, leukemias, and thyroid cancer.

• 年轻人最常见的恶性肿瘤是睾丸癌、淋巴瘤、黑色素瘤、原发性脑肿瘤、白血病、甲状腺癌。