If men have symptoms of genital organs such as nodules on the head of the penis and swollen testicles, most people’s first reaction must be: Could I have contracted an STD? Few people know that these genital abnormalities may be the early symptoms of malignant tumors such as penile cancer and testicular cancer. In clinical practice, many men mistake the symptoms of genital organs as STDs and take medication on their own, but the “STDs” remain untreated for a long time, and only when they go to regular hospitals for systematic examination, they find out that they have cancer, thus missing the best time for cancer treatment. Mr. Wang, a university graduate, originally had a prepuce and no history of unclean sexual intercourse. However, because he felt itchy at the head of his penis and noticed a foul-smelling purulent secretion oozing out of his foreskin, he initially thought he was infected with a “sexually transmitted disease” and bought medicine, but after two years of treatment, he did not get better. The first thing you need to do is to go to the hospital and have your testicles swollen. The company’s main goal is to provide a comprehensive range of products and services to the public. Four months later, his condition did not improve but worsened, and only when he went to the hospital was he found to be suffering from testicular cancer, and retroperitoneal lymphatic metastasis had occurred. The main cause of STD is unclean sexual intercourse, while malignant tumor of genital organs is not related to unclean sexual intercourse. The above two male genital tumors are among the few malignant tumors in medicine with very good treatment effects, but the prerequisite is early detection and early treatment. Men are less aware of self-care and are too shy to talk to their colleagues, friends and relatives or doctors about their illnesses, resulting in many of them being in advanced stages when they seek medical attention. The early symptoms of testicular cancer are very similar to those of testicular syphilis, both of which are lumps in the testicles with smooth surface. However, when testicular syphilis occurs, the testicular lumps are smaller, wooden and hard, without obvious heaviness, and testicular sensation disappears. Testicular cancer, on the other hand, has larger lumps, heavy and downward sensation, substantial lumps, hard and losing normal elasticity, or several enlarged nodules in the testicles; penile cancer initially appears as papules, wart-like new organisms or hard nodules on the head of penis, followed by ulcers and ulcers with foul-smelling purulent discharge, very similar to glansitis caused by syphilis and gonorrhea. However, whether the performance is eczema-like, erythematous white spots, or small papillae, cauliflower-like prominence, careful touching of its base will find a hard plaque, hard and untidy edges, with the circumcision should be more carefully touched. It is worth noting that any lump or ulcer growing on the genitalia that has failed to respond to 2 weeks of antibiotic treatment should be considered as penile cancer. Penile cancer can also be easily confused with giant condyloma acuminata of the penis. The latter is often larger in size and forms cauliflower-shaped filled in the foreskin, sometimes it can penetrate out of the foreskin or break the ring spongy body, which can have secondary infection and form ulcers and be mistaken for penile cancer. However, the papillae of giant condyloma acuminata are larger, softer, with significant keratosis, and the epithelium on their surface is very thin, so they are pink and have a moist surface, which can be distinguished from penile cancer. However, sometimes it is not easy to distinguish the two and a biopsy is needed to distinguish them; furthermore, giant condyloma acuminatum of the penis may also malign into penile cancer. In addition, testicular tumor is a kind of tumor that is easier to be detected by self at an early stage. In other words, patients are often their own “first doctor”. Many patients with testicular tumors are discovered when they inadvertently touch their testicles. Therefore, just as self-examination of the breast is popular among women, self-examination of the testicles should be popular among men, which is valuable for early detection of testicular tumors. The main examination is to check the size of the testicles, changes in texture, and the presence of lumps, etc. Testicular self-examination method: When performing testicular self-examination, take a hot bath first to loosen the scrotum in order to feel hard lumps and abnormalities. During the examination, stand on your feet and feel for lumps or other abnormalities. Normal testicles are oval in shape, with smooth surface, medium hardness and good elasticity. If self-examination reveals lumps or any abnormalities in the scrotum, you should go to the urology department as soon as possible for relevant examinations. What’s more, penile cancer mostly occurs in patients with circumcision or prepuce, which is the main cause of penile cancer. Therefore, if you have long foreskin or circumcision, you should have circumcision as soon as possible.