Hi there ~
I understand that you have urinary leakage after ejaculation, from what you have written. It would be best to consult a urologist
who can help you with any urinary problems and if it with your sexual activity please consult a psychiatrist
, i.e. for premature ejaculation
and erectile dysfunction
. Masturbation is a normal physiological activity.
I hope this helps. Take care and have a lovely day!