What if we have sweaty balls? It has not happened to me, but to my friend it has happened. He asked me to ask you. Thank you for any solution.
Your testicles need to be a few degrees cooler than the rest of your body to function properly. That is why your scrotum hangs outside your body. As you get warm, the scrotum relaxes and hangs down, giving greater surface area to radiate heat and cool the testicles. When you get cold, the scrotum pulls up and contracts, putting the testicles closer to your body heat and reducing the surface area to conserve heat. When you get really hot, you sweat because as the water evaporates it cools the skin.
If you sweat a lot, then you need to dress in looser, cooler clothing that allows more air to flow around your genitals. Loose boxers tend to be cooler than briefs. There are also materials that allow moisture to move through instead of trapping it against your body.
Sweat alone is not often a problem, but it can lead to chafing skin because your clothing clings to your body. But the biggest concern is fungal infections (jock itch). Fungus spores are everywhere, and they grow best in warm, moist environments. Fungal infections causes redness and itching. They can be cured with anti-fungal medications, but better is to prevent them from growing on your skin.
Bathe at least once a day to remove the spores. Dry off completely before getting dressed again. At night wear something minimal and very light, such as pajama shorts or loose boxers (but not both), or sleep without any clothing. Don't wear the same thing at night that you wear during the day. By allowing your skin to dry out each night, it interrupts the growth of any fungus spores.
You can also use a body powder, or just cornstarch, on your genitals. The powder absorbs some of the sweat, but unfortunately won't last long.