I'm male and I have bleach spots in the rear of my underwear - is this normal?

Bleach spots on your underwear can indicate a few things, such as using bleach-containing laundry detergents or fabric softeners that may have caused discoloration. It's not uncommon for certain substances to cause bleaching, especially if they come into contact with your clothing. However, if you're noticing unusual changes in your skin or other symptoms, it may be wise to consult a healthcare professional for further advice.