Circumcision prevents Male genital dermatoses according to these 2 websites:

https://www.ncbi.nlm.nih.gov/pubmed/10724196

https://jamanetwork.com/journals/jamadermatology/fullarticle/190052

A nurse once told me about how she took care of uncircumcised old men who had genital infections that caused some of them to not urinate properly or not urinate at all. I also heard that uncircumcised old men are at a higher chance of getting genital infections and diseases than circumcised old men are.

But despite that, I still don't think it justifies having circumcision done on babies.

I'm pretty sure women (especially older women) have about the same chance of getting genital infections and diseases as uncircumcised men do, and their genitals are still left intact. So why can't men's genitals be left intact too?