4. Using the House as a Litter Box
If she has taken her elimination habits outside of the box, so to speak, she is not being willfully disobedient. Inappropriate elimination has many causes, such as a decrease in mobility, a more frequent urge to eliminate, less control over her bowels or bladder, and serious organ issues, urine tract infection, kidney disease, or even brain tumors. Take her to the vet to rule out any medical issue and, if that’s not the cause, increase the number of litter boxes. You may need to get a litterbox with lower sides than her current box so that she can comfortably enter and exit.