In Norse Mythology the bridge leading from the realm of the mortals Midgård to the realm of the gods Asgård. The bridge itself is the rainbow and its guardian is the god Heimdall. The bridge is destroyed at the end of the world, Ragnarok. It as built by the Aesir.
... said to be more common in females than males. Urethritis is a common cause of dysuria[?] (pain when urinating).
Related to urethritis is so called urethral syndrome[?]
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