my husband pennis drops suddently

Hi All, I am Female ,25Y age. durng the sex, my husband pennis drops suddently during the intercourse . what could be the reson? any treatment for this ?

Sometime it won't become as big. sometimes it will become a bog. when he tried to insert , the sperm coming outside. it's not all going into vigina.

Viagra is often the answer, but you don't say how old your husband is, if he is around your age, then that is young to be suffering from erectile desfunction, and could be something else, it's worth checking with his Dr, as it could be a sign of something else.

his age is 30. some times he is pennis becoming larger and he tried to insert . but  some times it drops suddently. do you want us to consult the doctor. what should we say to the doctor?

You should say exactly that.

Or perhaps you need to stimulate him a little more before trying intercourse, there are various ways.

Premature ejaculation?

I would say your husband should go to you GP. You can go together. Tell him what you have told us on here. He will be able to help or give advice.