How can one know she has a loose vagina, or you are a guy want to know if your wife vagina has become loose over the years, Is not good you presume. Testing things out is best and this simple finger check or Kelgel ball test can do the magic and give you the exact state of your vaginal muscles.
You can determine vaginal looseness by doing the finger check or the kegel ball test. For the finger check test you need to slide your index finger into the vagina and see if you can feel it. Then two fingers (index and middle) to gauge tightness as compared to 1 finger. If you can slide in three fingers (middle, index and ring finger hold together) and can’t feel much, than most probably the vagina is a bit loose.