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 skin infections caused by viruses of the human papillomavirus (HPV) family. They're more common in kids than in adults. Warts can affect any area of the body, but tend to invade warm, moist places, like small cuts or scratches on the fingers, hands, and feet. Most warts are painless unless they're on the soles of the feet or another part of the body that gets bumped or touched all the time. Kids can pick up HPV â and get warts â from touching anything someone with a wart has used, like towels and surfaces.