What is wart, what causes wart?

Primarily wart is an infection caused by Human papillomavirus (HPV). After the infection the tissues which is infected forms a fibrosis and the blood vessels and cells are damaged developing  a round shaped mass. This fibrous tissue has damaged blood vessels and cells while the tissue is almost dead.
Wart in initial stage of infection is painful when the affected tissue is under the process of viral attack and damage, in the initial stage a blister may form and up on its rupture the damaged tissue remains there for longer period almost years.

How wart, papillomavirus (HPV) infection spread?

Warts are small patches usually in circular or irregular patches, caused due to damage to tissue caused by human papillomavirus (HPV) infection.

Human papillomavirus (HPV) is very contagious, and spreads through direct or indirect contacts. If articles like linen in a salon or in a common room are used by an infected person and same are used by other individuals, in such instances the other individual is likely to get an infection of human papillomavirus (HPV).

Human papillomavirus (HPV) infects internal organs as well as outer skin, there are following types of warts.

HPV virus infects and damages skin lining and forms a fibrous tissue which is benin, and most of the time it’s not painful. Fresh infection of HPV starts with formation of boi over the skin and afterwards it transforms into a damaged skin tissue patch.

Different types of wart.

1)Common warts. Are caused by HPV types 2, 4 (most common), and by types 1, 3, 27, 29, and 57

2) Genital warts. condyloma acuminatum caused by type 6 and 11.

3)Focal epithelial hyperplasia, Heck disease Caused by HPV Types 13 and 32

4) Flat warts, HPV Type 3, 10, and 28

5) Deep palmoplantar warts (Myrmecia). HPV Types 1 (most common) and by types 2, 3, 4, 27, and 57

6) Epidermodysplasia verruciformis. HPV types 5, 8, 10, and 47

7)Plantar cysts. HPV type 60

HPV types 5, 8, 20, and 47 can cause cancerous growth into epidermodysplasia verruciformis.

Genital warts are caused due to sexual transmission of HPV from one person to another via sexual contact.

Human papillomavirus

Referances: https://www.cdc.gov/infectioncontrol/index.html