Does the hymen go away after puberty?

The short answer:NO: The hymen is a structure that acts as a partial gate to sensative vaginal skin before the hormones of puberty thicken the vaginal walls. Before puberty the skin may breakdown with trauma & easily bleed & get infected. After hormonal changes this is less likely. After puberty the hymen may have a small or large opening. The opening will be stretched or broken during solo or partner sexual activity.

No: The hymen never goes away, it just changes. All women are born with one, and all will die with one. The idea that it is a flap that can pop and disappear is patently false. It is a fleshy round piece of tissue thatched all the way around the inside of the vagina with a hole in the middle. It's flexible and stretchy and does not pop, just changes.

No: Some hymens are little more than a ridge so a post pubeertal woman might think that it went away spontaneously. However a hymen usually remains until it gets torn or ruptured.