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Jumat, 21 Desember 2012

Common warts

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Common warts

Common warts
Definition:

Common warts are small, grainy skin growths that occur most often on your fingers or hands. Rough to the touch, common warts also often feature a pattern of tiny black dots — sometimes called seeds — which are small, clotted blood vessels.
Common warts are caused by a virus and are transmitted by touch. Children and young adults are more likely to develop common warts, as are people who have weakened immune systems. Common warts usually disappear on their own, but many people choose to remove them because they find them bothersome or embarrassing.

Symptoms:

Common warts are:
  • Small, fleshy, grainy bumps
  • Flesh-colored, white, pink or tan
  • Rough to the touch
Common warts usually occur on your fingers and hands. They may occur singly or in multiples. Warts may bleed if picked or cut. They often contain tiny black dots, which are small, clotted blood vessels.
When to see a doctor
Most common warts don't require medical treatment, but some people choose to have their warts treated because they're bothersome, spreading or a cosmetic concern.

Causes:

Warts are caused by the human papillomavirus (HPV). There are more than 100 types of HPV, and different types of the virus cause different types of warts. Most types of HPV cause relatively harmless conditions such as common warts, while others may cause serious disease such as cancer of the cervix.

Wart viruses pass from person to person. You can also get the wart virus indirectly by touching a towel or object used by someone who has the virus. Each person's immune system responds to the HPV virus differently, so not everyone who comes in contact with HPV develops warts.
If you have warts, you can spread the virus to other places on your own body. Warts usually spread through breaks in your skin, such as a hangnail or scrape. Biting your nails also can cause warts to spread on your fingertips and around your nails.

Complications:

 Because warts shed HPV, new warts can appear as quickly as old ones go away. They can also spread to other people.

Treatments and drugs:

Many common warts don't require treatment. They usually disappear within two years, though new ones may develop nearby. You may want to treat them for cosmetic purposes, if they're causing discomfort or to prevent their spread. Home treatment is often effective in curing common warts.
If you have stubborn warts and home treatment isn't helping, your doctor may suggest one of the following approaches, based on the location of your wart, the degree of your symptoms and your preferences. Doctors generally start with the least painful, least destructive methods, especially when dealing with young children.
  • Freezing (cryotherapy, or liquid nitrogen therapy). Your doctor may use liquid nitrogen to destroy your wart by freezing it. This treatment is usually only mildly painful and is often effective, although you may need repeated treatments. Freezing works by causing a blister to form under and around your wart. Then, the dead tissue sloughs off within a week or so.
  • Minor surgery. This involves cutting away the wart tissue or burning it with electricity. However, the injection of anesthetic given before this surgery can be painful, and the surgery may leave a scar. For these reasons, surgery is usually reserved for warts that haven't responded to other therapies.

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