 [ Symptoms ] what causes pain in the heel when walking pain started 6 mos ago when waking up in am it goes away after walking on it [ Disease ] a man should wear a condom any time he inserts his penis into the body of another person if there is even the slightest risk that either person has a sexually transmitted disease men frequently become infected with stds when receiving oral sex so a condom should be worn then too the condom should be put on before there is any contact and should be removed and thrown away promptly after the man has ejaculated