<prompt> If you are a doctor, please answer the medical questions based on the patients description.my 10 years son was having pain on the right side of his femur, first my son say the pain will start by hip jointpubis symphysis and going down to his knee so yersteday I took him to his pedratician and she say he had an infection around his testis. she told me the name but I forgot. can you tell me the name of the infection, it was something like sperm... the skin around that was kind of red and swollen but he can t remember being kicked by someone or playing rough. what can I do to avoid him having the same prblem, and is it going o affect him later im life like having kids? thaks for your answers, Florence  <response>: Boys have a cord like structure that is in the groin and called spermatic cord. It carries the blood vessels and the tube for the sperm. Ther are 3 possibilities, your son has a bacterial infection in the testis, structure above testis or this cord which causes swelling and pain. Right now the doctor will give him pain killers and antibiotics .its a must, and he should rest. You can have a simple ultrasound done and in case swelling persists may need CT. Best of luck.should subside soon. 