I've noticed this tiny hard growth on my foreskin, about the size of a grain of sand. It's not itchy or burning or anything, but I'm a bit worried about what it could be. Any ideas on what this might be or if I should get it checked out?

This could potentially be a condition called Fordyce spots, which are small, raised, pale red, yellow-white, or skin-colored bumps that can appear on the shaft of the penis or the foreskin. They are usually harmless and do not require treatment. However, it is important to have it properly diagnosed by a healthcare provider to rule out any other possible conditions.