How can men determine if they have a sexually transmitted disease?

This question actually troubles many male friends. The most direct method is to observe changes and symptoms in the body. For example, whether there is unexplained genital pain, itching, abnormal discharge, or abnormal phenomena such as skin ulcers and red rashes. These are all possible warning signs. Besides the direct symptoms of the body, men can also judge by paying attention to their overall condition. For instance, whether there is unexplained fever, fatigue, muscle soreness, and other systemic symptoms. These manifestations, which seem unrelated to the reproductive system, may actually be indirect signals of sexually transmitted diseases. Just like feeling weak all over when you have a cold, sexually transmitted diseases can also remind you through systemic symptoms. Psychological changes cannot be ignored as well. Some men may feel anxious and depressed due to sexually transmitted diseases, which can even affect their daily life and work. If you find yourself experiencing these emotional fluctuations after sexual activity, consider whether they are related to your health status. Of course, the most scientific method is to undergo regular health checks. Many sexually transmitted diseases do not show obvious symptoms in the early stages and can only be accurately diagnosed through professional medical testing. Just like we regularly maintain our cars, our bodies also need regular "checks" to ensure everything is normal. If you have any suspicions, it is recommended to consult a professional doctor as soon as possible. Early detection and treatment can not only effectively control the condition but also avoid unnecessary psychological burdens. Remember, health is your own. Paying timely attention to and caring for your body is a manifestation of being responsible for yourself and your family. I hope these suggestions can help you gain a clearer understanding of your health status.