What causes balanitis?

Here are... It's caused by sweat retention, moisture, warmth, ; the overgrowth of local microorganisms, leading to intertrigo syndrome as that under female breasts, in armpits and groin folds between thighs ; external genitalia of men ; women, notably in those being obese. Similarly, chronic skin inflammation in glans penis in those with redundant foreskin with poor hygiene occurs as balanitis.
Balanitis. Usually an infection of the foreskin, most commonly candida (or yeast). Other organisms can cause this as well, but sometimes the foreskin just becomes inflammed. Usually treatment consists of treating the infection. Sometimes, if the condition is bad enough, surgery is required.