What are symptoms of retractible testicles? mine seem to go up into my groin all the time even when they arent too cold???

Need to examine: If the testicles are in the scrotum some of the time and retract only into the groin, not into the abdomen, let it be. It is a normal behavior for testes. Have a healthy diet, exercise 30 minutes/day, drink plenty of water, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!