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550s

Centuries: 5th century - 6th century - 7th century

Decades: 500s - 510s - 520s - 530s - 540s - 550s - 560s - 570s - 580s - 590s - 600s

Years: 550 551 552 553 554 555 556 557 558 559 560

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Urethra

... penis. Medical problems of the urethra: Hypospadias[?] is a form of abnormal development of the urethra in the male, where the opening is not quite where it should ...