Is "small three positives" contagious?

Is "Xiao San Yang" contagious? The answer is yes. Xiao San Yang is a sexually transmitted disease caused by a certain virus. This virus can be transmitted through sexual contact, blood exposure, or other forms of close contact. It can also be passed from an infected mother to her fetus during pregnancy, meaning that if the mother is infected, the fetus may also become infected. There are multiple transmission routes for Xiao San Yang, with sexual intercourse being the most common. Therefore, engaging in sexual activity—especially without using a condom—can lead to infection. Additionally, the virus can spread through blood and bodily fluids, such as by sharing needles or using contaminated tattooing and piercing instruments.