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 non-cancerous skin growths caused by the human papilloma virus. They are common around the nails, back of the hand and soles of the feet. Warts can be raised and rough, flat and scaly or long and narrow, depending on their type and location on the skin. TREATMENT.