I have been back to live in India after 15 years. One of the things that I find very odd is the way sanitary napkins are treated.
for example, if I buy it in a pharmacy -- the guy will either wrap it in a newspaper or a brown paper bag before putting it inside a plastic bag (not done for anything else), clearly to conceal what is inside. Kind of like the alcohol used to be sold many years ago ... I have tried asking many times why they do this -- but I get an embarrassed mumbled reply. Recently i ordered things from an online grocery service, and they had a sanitary pad as a free gift ... interestingly even this came meticulously packed inside a brown paper bag. I tried asking my mother why are they doing this -- but she wouldn't give me an answer either ... it was a matter too embarrassing to be discussed. I haven't attempted walking around with a pack inside a plastic bag without anonymization ... perhaps I should. I have not seen this phenomenon in other countries ( my sample of other countries is a couple of african countries and a few european countries)