is acanthosis nigricans?
is a condition which results in thick, dark areas developing on the skin. It
is also known as AN.
causes acanthosis nigricans?
The exact cause
of this acanthosis nigricans is unknown. It can be a genetic (inherited) condition.
When inherited, it is not considered dangerous. However it is sometimes associated
with obesity, diabetes, cancer and certain drugs. All of these conditions can
be considered potentially dangerous.
are the symptoms of acanthosis nigricans?
- The skin is
darker and thicker in certain areas. These areas may be light-brown to black
- The dark patches
feel velvety and rough.
does acanthosis nigricans most commonly occur?
is usually found in the armpits and other body folds, for example, on the neck,
under the breasts, between the legs, on the elbows, or around the belly button.
Only the outer
part of the skin is affected.
can I prevent acanthosis nigricans?
You cannot prevent
acanthosis nigricans if it is hereditary.
If it is caused
by something like obesity, losing weight may control it. If it caused by certain
drugs, stopping them may control the condition. However the drugs may be necessary
for some other more serious condition, in which case there is little you can
what age does acanthosis nigricans develop?
can develop at any age.
acanthosis nigricans contagious?
nigricans is not contagious.
are the long-term effects of acanthosis nigricans?
nigricans can be associated with potentially dangerous conditions such as obesity,
it is not in itself a dangerous condition.
However from a
psychological point of view, the development of dark patches on the skin can
bother some people, especially if they are on parts of the body which cannot
be easily covered.
If you develop
dark patches on your skin, visit your doctor for advice.
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