It is a recommended/condoned practice by global and US medical associations for a number of health benefits.
[CDC Recommendation](https://www.webmd.com/baby/news/20141202/cdc-endorses-circumcision-for-health-reasons)
[WHO Recommendation](https://www.who.int/publications/i/item/978-92-4-000854-0)
Prevention of cancer: Individual studies and metaanalyses ([1](https://pubmed.ncbi.nlm.nih.gov/18607597/) [2](https://pubmed.ncbi.nlm.nih.gov/21695385/)) show that penile cancer is significantly more common in uncircumcised people. This is true in 1st and 3rd world countries. Phimosis is also a risk factor for penile cancer, and when you correct for the cases with phimosis, being uncircumcised is no longer a risk factor.
STIs (not HIV): There is increased risk for [Human pappiloma virus](https://pubmed.ncbi.nlm.nih.gov/21962470/) in uncircumcised men. This is associated with genital warts, penile cancer, and cervical cancer in women receive this infection from their male partners. I think this is becoming less of an issue now that the HPV vaccines are approved for men.
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