3 year old playing in poop

My daughter has NEVER played in her poop until recently. She has started going in her room to poop instead of the toilet and will go in her closet and wipe herself off with her clothes. She just did it again this morning but put her hand down the back of her pants so her hand was covered in poop. Hopefully it’s a faze but I can’t handle this anymore 😩 what do I do??