Warts are small, rough growths on the skin caused by the human papillomavirus (HPV). They can appear on any part of the body but commonly occur on the hands and feet.

Cold" and "flu" are both terms used to describe respiratory illnesses caused by viruses, but they are caused by different viruses and have some differing symptoms and severity.

Sarcoma is a type of cancer that originates in the connective tissues of the body, such as bones, muscles, cartilage, nerves, and blood vessels.