Not an expert, but I believe the biggest threat of Hansen’s is undetected injury to the body because all sensation is gone. I have heard of a program of personal visual self-examination (VSE?) to spot unfelt damage (bruises, cuts, infections, etc.) that could get much worse, even fatal, if untreated.
***that could get much worse, even fatal, if untreated.***
As in skin leassions, bones in the hands and toes begin to disolve, bones and cartilege in the nose begins to disolve you end up with no nose, leaking skin leasions, stubbs where fingers were. I saw them in SE Asia, Thailand 1969 begging for baht (5 cents).