睾丸肿瘤是15～35岁青年男性最常见的实体肿瘤,近几十年来,其全球发病率有逐渐增加的趋势,尤其在一些西方国家,发病率以每年1%～2%的速度增长。在我国发病率及死亡率均在1/10万左右,占男性全部恶性肿瘤的1%～2%,占泌尿生殖系统恶性肿瘤的3%～9%。睾丸肿瘤的确切病因尚不清 Testicular tumors are the most common solid tumors in young men aged 15-35 years. In recent decades, their global incidence has been gradually increasing. Especially in some western countries, the incidence increases at the rate of 1-2% annually. In China morbidity and mortality are 1/10 million, accounting for 1% to 2% of all male malignant tumors, accounting for 3% to 9% of genitourinary malignancies. The exact cause of testicular cancer is unclear