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In page Postpartum confinement:

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Korean women spend samchil-il (three seven days, 21 days) in confinement, receiving sanhujori (postpartum care). In the past, during the samchil-il period, geumjul (taboo rope) made with saekki and various symbolic objects, such as chili peppers (for a boy) and coal (for a girl), was hung over the gate to denote the childbirth and restrict visitor access.[citation needed]