Irritation on sons genitals

Melissa

Wondering if it’s common for a little red irritation on boys balls sak. He plays in his jumper not a lot and obviously is in diapers. He is almost 8 months old. I noticed he has some red irritation on his balls. Could it be from the diapers running against them when he is in his jumper? I have been putting some triple paste on it as a barrier. It’s not bad just something I noticed. This is my first boy. Thank you