Depends: Stool, urine, ejaculate? Spilled food? All of these could cause a crusty yellow stain.
Answered 11/15/2020
3.7k views
Penile Discharge?: Check him for a penile discharge. If that is where it is coming from he (and you) need to get tested for STD's. Auckland Testing: https://www.nzaf.org.nz/services-programmes/hiv-sti-testing/
Answered 3/16/2018
909 views
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5 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
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