Article

Good news: vasectomy doesn’t lower testosterone or cause erectile dysfunction. Many men report unchanged or even improved sexual satisfaction once pregnancy anxiety is removed. Major guidelines advise there’s no need to counsel about increased risk of erectile dysfunction, heart disease or dementia because vasectomy is not a risk factor for those conditions.
(Guideline Central)

Ejaculate volume may feel slightly different to some people (sperm make up only a small fraction of semen), but orgasm and sensation are expected to be the same. If something feels off for you, we want to hear about it.