
Better question is "how was he even raised as a baby" unless he was bottlefed by men the entire time (since he can't touch women so breastfeeding & wetnurses would be out of the question). His disease leads to all kinds of weird scenarios like "did his mom pass out immediately after giving birth to him" and "did they purposefully spread rumors that he's gay (more plausible) to cover up all the times he made ladies sick with his mere presence/touch before they realized that this was actually a real thing".

I’m gonna assume that he didn’t have it early on in his life. I’d guess that it’s a curse given to him by an enemy/political rival, because what better way could they ensure the downfall of the monarchy? The one in line for the throne can’t touch a woman = can’t have kids = no heirs = no successor = a new political weakness to be exploited by opposition. (๑•ㅂ•)و✧

better way hmmmmm i think it'll be funny if the one in line cant touch woman because he's gay and he's just like "urgh woman" and then we'll have our shoujo mc be lesbian and she'll be like "urgh man" and watch how they interact with each other and try to help each other for benefits (like mc act as his wife so that he wont be rip of the throne etc...) and then both of them just ogles at their respective desired sex everyday XDD
Then how did the queen give birth to hi---