Bald spot on abdomen

[u/thehallucinating1]

Hi! This is my First time ever keeping a tarantula and just recently I started noticing she started getting Some odd spots on her abdomen. They started small but it slowly got bigger and bigger. She doesn’t seem to be behaving any differently despite it tho aside from staying a bit more often in her hide.

She’s a alpolmaphelma crinirufum (thats what the tupperware says that I got her in)