Do they burn the tubes in a vasectomy?

No, the tubes are not burned during a vasectomy. Instead, the procedure involves cutting and sealing the vas deferens, the tubes that carry sperm from the testicles to the urethra. This is typically done by tying, clipping, or using heat to cauterize the ends of the tubes, but burning is not the primary method used. The goal is to prevent sperm from mixing with semen during ejaculation.