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Most skin bumps, spots, growths, and
moles are harmless. Colored skin spots, also called
pigmented lesions (such as freckles, moles, or flesh-colored skin spots), or
growths (such as
skin tags) may be present at birth or develop as the
Most skin spots on babies will go away without
treatment within a few months.
Birthmarks are colored marks on the skin that are
present at birth or develop shortly after birth. They can be many different
sizes, shapes, and colors, including brown, tan, black, blue, pink, white, red,
or purple. Some birthmarks appear on the surface of the skin, some are raised
above the surface of the skin, and some occur under the skin. Most birthmarks
are harmless and do not need treatment. Many birthmarks change, grow, shrink,
or disappear. There are many types of birthmarks, and some are more common than
others. For more information, see the topic
Acne is a
common skin change that occurs during the teen years and may last into
adulthood. Acne may be mild, with just a few blackheads (comedones), or severe,
with large and painful pimples deep under the skin (cystic lesions). It may be present on the chest and
back as well as on the face and neck. Boys often have more severe outbreaks of
acne than girls. Many girls have acne before their periods that occurs because
of changes in
hormone levels. For more information, see the topic
During pregnancy, dark
patches may develop on a woman's face. This is known as the "mask of
pregnancy," or chloasma, and it usually fades after delivery. The cause of
chloasma is not fully understood, although experts think that increased
levels of pregnancy hormones cause the pigment-producing cells in the skin
(melanocytes) to produce more pigment. You can reduce skin pigment changes
during pregnancy by using sunscreen and staying out of the sun.
Actinic keratosis and actinic lentigines are types of colored skin spots that
are caused by too much sun exposure. Although these spots are not skin cancers, they may
mean that you have an increased chance of getting skin cancer, such as
squamous cell skin cancer or a type of melanoma.
You may have an
allergic reaction to a
medicine that causes a skin change, or you may develop a skin
reaction when you are out in the sun while you are taking a medicine (this is
called photosensitivity). Rashes, hives, and itching may develop, and in some
cases may spread to areas of your skin that were not exposed to the sun
(photoallergy). For more information, see the topic
Skin changes can also
be caused by:
Some common skin growths
Treatment of a skin change depends on what is causing the skin
change and what other symptoms you are having. Moles, skin tags, and other
growths can be removed if they become irritated, bleed, or cause
While most skin changes are normal and
occur with aging, some may be caused by cancer.
Skin cancer may start as a growth or mole, a
change in a growth or mole, a sore that does not heal,
or irritation of the skin. It is the most common form of cancer in North
Skin cancer destroys skin cells and tissues and can
spread (metastasize) to other parts of the body. The three most common types of
skin cancer are
basal cell cancer,
squamous cell cancer, and
melanoma. See a picture of the
ABCDEs of melanoma.
Early detection and
treatment of skin cancer can help prevent problems. Treatment depends on the
type and location of the growth and how advanced it is when it is diagnosed.
Surgery to remove the growth will help determine what treatment will be needed.
For more information, see the topics
Skin Cancer, Melanoma and
Skin Cancer, Nonmelanoma.
Check your symptoms to decide if and when
you should see a doctor.
Health Tools help you make wise health decisions or take action to improve your health.
Based on your answers, you may need care soon. The
problem probably will not get better without medical care.
Based on your answers, the problem may not improve without medical
A new yellow tint to the skin can be a symptom of
jaundice. Jaundice occurs when levels of a substance
called bilirubin build up in the blood and skin. It may be caused by a problem
with the liver or the blood.
With jaundice, the whites of the eyes
also may look yellow, and stools may be light-colored or whitish.
Symptoms of an allergic reaction may
Skin changes are a common side effect of many prescription
and nonprescription medicines. Common side effects include:
Many things can affect how your body responds to a symptom and what kind
of care you may need. These include:
You have answered all the questions. Based on your answers, you may be
able to take care of this problem at home.
Symptoms of infection may
Certain health conditions and medicines weaken the immune system's ability to fight off infection and
illness. Some examples in adults are:
Based on your answers, you may need care right away. The problem is likely to get worse without medical care.
A change to a mole or other skin spot
can mean that the spot has:
Most bumps, spots, growths, or
moles do not need any type of home treatment. But the following measures
may be helpful:
Call your doctor if any of the following occur during home
Most noncancerous skin bumps, spots, and
growths can't be prevented. But there are steps you can take to help
prevent some skin problems:
Most skin cancer can be prevented by
protecting your skin from the sun. You may decrease your chances of developing
skin cancer and help prevent wrinkles by avoiding sun exposure and using sunscreen protection. Be sure to prevent sun exposure in children and older adults too.
Do not use tanning booths to get a tan. Artificial tanning
devices can cause skin damage and increase the risk of skin cancer.
For more information on warts, see the topic
Warts and Plantar Warts.
information on how to help prevent acne, see the topic
To prepare for your appointment, see the topic Making the Most of Your Appointment.
You can help your
doctor diagnose and treat your condition by being prepared to answer the
December 27, 2012
William H. Blahd, Jr., MD, FACEP - Emergency Medicine & H. Michael O'Connor, MD - Emergency Medicine
How this information was developed to help you make better health decisions.
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