Unless you are familiar with popping, i wouldnt just 'try' it. You can hurt the snake if done wrong. If you are really worried, just find another vet and take Phyllis in for a probing. Shouldnt be too expensive. My vet charges $50 for an office visit and will probe an extra snake no charge if i am bringing in something else. Thats how i verified Dottie was a she. I was told she was a 'she' as she was popped as a baby by Dr Adolf Maas who is the local be all end all reptile vet in the area. But i wanted to make sure so when i had to take Harley in for a checkup, i just dragged Dottie along for a quick probing and the vet confirmed she is a she.