The Ties that Bind: Pregnancy and the Persistence of Tradition in Contemporary Japan

TL;DR

This article traces the Japanese belly band (*hara obi*) from legendary and courtly origins through Tokugawa medical debates, religious and folk uses, and modern consumer and literary representations. It argues that the object survives less for proven obstetric utility than for its talismanic, emotional, and generational meanings.

Key findings

• The *hara obi* is attested in the eighth-century *Kojiki* as worn by Empress Jingū in the third century CE; by the Heian period it appeared in imperial birth records, and by the Tokugawa period it had spread across classes and was tied to the fifth month of pregnancy and the day of the dog.
• Tokugawa physician Kagawa Genetsu rejected the *hara obi* as medically unnecessary and potentially harmful, arguing that fetal position was set by the fifth month and that binding could pool uterine blood, impede the afterbirth, damage the vagina, and misalign the fetus; his school helped reduce medical mentions, but use persisted among midwives, rural practitioners, and as a religious talisman.
• Religious and folk meanings accumulated: Buddhist story collections linked the *hara obi* to Jizō’s protection; shrines and temples sold or bestowed them; it marked both protection and ritual impurity/taboo status; modern sites and shrines continue sale, disposal advice, and auspicious associations.
• Contemporary literature and advice media show the *hara obi* as a symbol of maternal identity, tradition, and reassurance: Itō Hiromi’s 1984 book describes buying one at Suitengu and wearing unbleached cotton despite inconvenience; Kakuta Mitsuyo’s 2006 novel has Maki initially dismiss then wear it at night; manuals and websites recast it for comfort, posture, warmth, and consumer choice.

Methods

• Historical and literary analysis, not an empirical study. It uses primary texts from the eighth-century *Kojiki* through Heian and Kamakura chronicles, Tokugawa etiquette and medical manuals (Namura Jōhaku’s *Onna chōhōki*, Katsuki Gyūzan’s *Fujin Kotobukigusa*, Kagawa Genetsu), Buddhist tale collections, Meiji, prewar, and postwar advice manuals, ethnographic accounts, websites, and contemporary fiction and autobiography.
• The main analysis traces shifting medical, religious, ritual, and nostalgic meanings of the *hara obi* and compares prescriptive and medical discourse with women’s writing on pregnancy.

Limitations

• The paper states no explicit limitations section.
• Evident from the text: it relies on selected historical, literary, prescriptive, and web sources rather than a systematic survey or clinical evidence; conclusions about contemporary attitudes are drawn from limited examples and secondary ethnography.
• Evident from the text: the focus is specifically the *hara obi* and Japanese maternal culture, so broader pregnancy practices and regional variation are only partially addressed.