I've experienced both of the problems mentioned in the article, but fortunately I didn't have to have medical treatment. One time I sat down too quickly and my scrotum became twisted. I could feel cords being pulled, and the pain was indescribably bad. I managed to get back to my feet and release the tension in my groin, but it still hurt for a day or so.
Another time I had to jump from the back of a bus when the driver saw fire, and I landed hard on my feet. I wasn't fully braced for the landing, and I felt an immediate pain in my groin. I think it was an inguinal hernia. Again, I felt the cords get stretched out when I landed. They didn't stay painful for long, but I did notice a swollen testicle later.