A herniated disc may be caused by: 1  Wear and tear of the disc. As you age, your discs dry out and aren't as flexible. 2  Injury to the spine. This may cause tiny tears or cracks in the hard outer layer of the disc.
Definition of wart. 1a : a horny projection on the skin usually of the extremities produced by proliferation of the skin papillae and caused by any of numerous human papillomaviruses âcalled also verruca vulgarisb : any of numerous similar skin lesions not caused by viruses.
Warts are nothing new. The word wart is from Old English. As far back as the 8th century, a wart was, well, a wart. The medical name for a wart is verruca, the Latin for wart. A common wart is a verruca vulgaris. A wart in medicine is also sometimes called by its Spanish name, verruga.