Risk factors. Risk factors for the penile yeast infection are any determinants that may put an individual on a case lead to infecting themselves with thrush. The presence of a foreskin covers the head of the penis most of the time which can create a breeding ground for the bacteria to grow and spread. Suppressed immune systems due to chronic infections such as diabetes or HIV may also put an individual at high risk of contracting a yeast infection. Certain treatments such as chemotherapy also impair the immune system which makes it possible for the Candida to overgrow and cause yeast infections.
