It's a myth

I think its just to avoid any infection since immunity is low ...garm kpde nhi toh covered rahiye kyuki aapko koi b bimari lgi toh aapke liye baby smbhalna mushkil hoga aur baby pe b effect pdhega uska... just take care of urself...meri baby toh 9 months ki abhi b log bolte hn tumhari thand use lgegi..😄😄 reason kuch b ho healthy rehne ki koshish krni hi h...best wishes

Its a myth. In july i came back home from hospi after a c-section in a knee length sleeveless dress.