Graduated form medical university, Zhang Yingdi, an old educated youth in Shanghai, has worked on urinary surgery for more than 30 years. She has profound theoretical knowledge and rich clinical experience, and is expert in treating impotence and premature ejaculation. In addition, she has her own knack in diagnosis and treatment of sexually transmitted diseases (STD) and prostatic diseases. Even now, a girl university student who was graduated 30 years ago is difficult to choose andriatry as her major. The author asked Doctor Zhang why she chose andriatry as her lifework. Doctor Zhang answered simply because of love. She is getting on for 60 years old, and her family is well-off. She has no need to work again, but she thinks that it is her most pleasant thing that she can alleviate the sufferings and perplexity of her patients through her own leechcraft