I was rubbing my sister's foot and could feel / hear these crunching sounds... WHAT ARE THEY? Thank you!?

Question

What are those crunchy things one can hear/feel when rubbing someones feet?

Is it bad if you hear / feel them?

Thank you!

Answer 1

It is normal to find "crunchy" areas in a person's foot. See this link for the description of a typical foot massage.
http://www.asiaweek.com/asiaweek/97/0314/feat3.html

Often a reflexologist will question a person about the health of the body area that corresponds to the crunchy area (see the link to the chart below, it's quite interesting).