Can you tell me if i use vege oil as lube, will it cause yeast infection?

No yeast, but...: Vegetable oil won't cause yeast infections. However, no oils are very good sexual lubricants; water-based products are much better. They can be purchased at any drug store. In addition, oil can weaken latex condoms, with higher risk of breakage. Never use oil for lubrication if also using condoms for contraception or for STD/HIV prevention.