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Athlete's foot
is an infection of the
feet caused by fungus. The medical term
is tinea pedis. Athlete's foot may last
for a short or long time and may come
back after treatment. Athlete's
foot or tinea pedis is a fungal infection of the
skin of the foot, usually between the
toes, caused by parasitic fungi.
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Causes, incidence, and risk factors
The body
normally hosts a variety of microorganisms,
including bacteria and fungi. Some of these are
useful to the body. Others may, under certain
conditions, multiply rapidly and cause
infections. Athlete's foot occurs when a
particular type of fungus grows and multiplies in
your feet (especially between your toes) or, less
commonly, your hands.
Of the fungal
infections known as infections, Athlete's foot is
the most common. It may occur at the same time as
other fungal skin infections such as ringworm or
. These fungi thrive in warm, moist areas. Your
risk for getting athlete's foot increases if you:
- Wear closed shoes, especially if they are
plastic-lined
- Keep your feet wet for prolonged periods
of time
- Sweat a lot
- Develop a minor skin or nail injury
Growth environment
Growth of the athlete's foot fungus is
promoted by a dark, warm, moist environment such
as that found inside shoes. The fungi persist for
a long time in the environment, facilitating
transmission of the disease in communal areas
such as locker rooms and showers.
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What is tinea?
Tinea is a fungus that can grow on your skin,
hair or nails. As it grows, it spreads out in a
circle, leaving normal-looking skin in the
middle. This makes it look like a ring. At the
edge of the ring, the skin is lifted up by the
irritation and looks red and scaly. To some
people, the infection looks like a worm is under
the skin. Because of the way it looks, tinea
infection is often called
"ringworm." However, there
really isn't a worm under the skin.
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Typical symptoms include scaling and peeling in the
toe webs (the area between the toes) generally without
any accompanying pain, odor, or itching. The infection
may also involve the soles of the feet where athlete's
foot may present as redness, blistering, and scaling
along the sides and soles of the feet, taking on what is
termed a moccasin pattern.
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Over time, this condition can
lead to a secondary bacterial infection.
Its possible for the fungus to set off a
reaction that results in tissue breakdown
soggy skin and eroded areas between the toes. In
advanced cases, the toe webs become whitened,
softened, and soggy; they may itch severely, and
there may be a foul odor. As the condition
worsens, painful cracking in the toe webs and
some oozing may develop. |
Athletes foot can sometimes be associated with
onychomycosis, a fungal infection of the toenails.
However, the usual case of athlete's foot is a more
superficial infection than the more stubborn and deep
seated nail infection.
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athlete's foot, if particles enter the
bloodstream, there may be an allergic reaction
causing blisters on the fingers, toes or hands. If
you have diabetes or an illness that makes it
harder for your body to fight off infections,
athletes foot can become a very serious
infection in itself or facilitate secondary
infections with other serious organisms. You
should see a doctor immediately if your feet
develop severe redness or swelling, areas of pus,
and/or severe pain.
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Do I need to see a doctor about athlete's foot?
If you cant seem to win the battle against
athlete's foot, then its probably time to visit
your doctor. There are further treatment steps that can
be taken. If the topical antifungal treatments are not
sufficient to control the problem, then an oral
prescription treatment is often the next step. There are
quite a few antifungal medications on the market, your
doctor will help you decide which is best. Fortunately,
some of the newer medications have minimal side-effects
and are less expensive, but because of possible
complications all of the oral antifungals are available
only by prescription.
Are there any other issues I should be concerned
about if I have athlete's foot?
Athletes foot is extremely common, and in almost
all cases there is no underlying problem that led to your
contracting this infection. However, fungal infections
can also be an early sign of more serious problems that
result in a weakened immune system. This is especially
true for individuals who are at risk for developing
diabetes or contracting the HIV virus. If someone in your
family has diabetes, or if you are at-risk for HIV
(high-risk sexual activity, needle sharing), then you
should see your doctor to confirm that these are not
potential underlying disorders
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