In the opinion of Lin Fu-shih, "The idea of women being unclean cannot be interpreted simply as discrimination against women." Rather, says Lin, the sight of blood is inauspicious, and might have the power to disrupt religious ceremonies, or to interfere with the ability to communicate with spirits.
「這所謂的不乾淨，不能簡單以歧視女性來解釋」，林富士認為所謂的不潔可能是因「見血」是種煞氣，具有某種程度的力量，會妨礙人與神鬼的接觸或是儀式的進行。