Is it possible to spread a yeast infection if taking a bath with another woman?

Candidal infection. No. Yeast infections are not std's (sexually transmitted diseases). Most common cause is a weak immune system. Risk of yeast infection raised in: stress/lack or sleep, illness/diseases; hormonal changes during period, certain meds like antibiotics, and poor eating habits. Bathing in extremely hot baths/hot tubs may increase the risk for yeast vaginal infections.