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.
Wart. Mole. Description. A wart is a rough growth that appears most commonly on the hands and fingers or on the soles of the feet. A mole is pigmentation in the skin that usually appears in many different colors. They can appear in any part of the body. Prone area of the skin. 1  Hands. 2  Finger. 3  Feet. 4  Arms.