Types Of Warts
Warts are benign thickenings in the skin or mucous membranes caused by
the human papilloma virus. Warts are also known as verrucae or condylomata.
Warts are very common - most warts on the hands, verruca vulgaris, plantar
warts and plane warts resolve without treatment. Warts can be found in
individuals of any age and in any location. They are particularly common
in children and teenagers. Generally warts occur in those who are sexually
active. There is a balance between the virus and the individual’s immune
system. Situations that reduce immunity will make it easier for the warts
to spread and become more susceptible.
There are more than 50 different types of human papilloma viruses. These
are DNA viruses. The different types are given numbers. It appears that
each number either gives a specific type of wart or a specific location.
There is an uncommon type of human papilloma virus that can have a potential
to develop cancers especially in the cervix. These are known as Type 16
and 18.
Warts are transmitted by skin to skin contact, although plantar warts
may well be transferred from moist floors. The transmission of warts depends
in part on the immunity and susceptibility of the individual involved.
Anogenital warts in adults are usually transmitted by sexual contact.
Anogenital warts in children, while possibly indicating sexual abuse,
may also be from other sites on the same patient.
Warts have an incubation period of many weeks to many months.
Types of Warts:
Verruca Vulgaris (the common wart)
These are thickened bumps called papules or plaques. They have a rough
surface and frequently will have small tiny spots which are from blood
vessels that have clotted. They are most commonly seen on the hands, elbows
and knees.
Flat Warts
se are flat-topped, smoother looking warts. They are brown or skin coloured.
They are most commonly seen on the face of women. They are spread easily
by shaving.
Plantar Warts
se are seen on the under-surface of the feet. They are thickened. They
can be confused with corns or calluses. They will frequently have thrombosed
blood vessels causing black dots. They can sometimes be uncomfortable
if they are in weight-bearing areas. Occasionally they can be quite widespread
involving large surfaces. They tend to grow into the skin rather than
coming outwards as most other warts.
Genital Warts
se appear in the genital peri-anal skin. They have a variety of appearances.
They can look like common warts or sometimes they are skin coloured, small
papules. They vary in size from tiny papules to much larger typically
warty growths. Occasionally they are pigmented. There is a subgroup of
these warts caused by HPV 16 and 18 which have been named bowenoid papulosis.
They have a small chance of becoming cancerous. Some of the genital warts
have been associated with carcinoma of the cervix, Bowenoid papulosis
and Bowen's disease.
Warts are usually obvious to the experienced doctor. A biopsy can confirm
the diagnosis although it is not commonly required. There are specific
tests to type the human papilloma virus although these are not done routinely.
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