Here this link does say Japan NO shower for 30 days after birth

http://www.hawcc.hawaii.edu/nursing/RNJapanese03.html

Japanese Traditional.

One woman stated that she was advised by her mother NOT to Shower for the First Month post partum. Instead, sponge baths were encouraged. Grated ginger root was rubbed on the skin to promote healing

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In other countries like Far East Asia women are still held in LOWER esteem BUT in China, it’s a different story. Chinese women are much more aggressive and outspoken and held in Higher esteem.” I love Communist that provides males and females Equality and WOMEN’S Rights in China.