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Very rarely, but you should look out for the following signs that a mole may be cancerous.

Asymmetric moles

Border of the mole is ragged

Colors and shades are different

Diameter of the mole is larger than a 1/4 inch

Evolving, changing in size, color, shape

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12y ago

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Related Questions

Can moles cause cancer?

Moles do not cause cancer, however, certain cancers, such as melanoma, can present with moles. Most moles aren't cancerous, but if you feel concerned, you should see a doctor, as the cancerous moles are very distinguishable from the regular moles.


Where could you find information on signs of cancerous moles?

You can find information on signs of cancerous moles online at websites such as MayoClinic and WebMD. If you suspect you have any sort of cancer you should contact a medical professional immediately.


Can sharing razors cause moles to appear?

Interesting enough, a recent study in 2009, at the University of Chicago indicated that many different kinds of moles contain a family of virus that can spread by way of physical contact. Replication of the virus and the resulting moles often develop in the new host subjects. The worst of the problem is that these types of moles often create virulent cancerous cells that metastasize very quickly. Now, can we deduce that sharing razors causes moles? Maybe. Even worse, it may be that sharing razors causes cancer.


Why can moles be dangerous and what should you do to monitor them?

they can be cancerous. watch for any irregular borders or changes in the mole.


Is their a correlation between eye freckle and colon cancer?

No. Weird looking moles could be cancerous though.


How do moles adapt to their habitat?

moles adapt to their habitat by having big feet and a strong nose


Can you get rid of Skin cancer?

There really is no cure for skin cancer, you just have to have the doctor cut off the cancerous moles and try to not get sunburned


Does New Zealand have moles?

We do not have moles.


Do all cancerous moles grow?

Sometimes they change in color, sometimes they grow, if you find something that looks too dark of might be questionable you should go to the dermatologist before it gets worse.


What are the signs for skin cancer?

There are several signs of skin cancer. Often, skin cancer does take form in a mole. Moles alone are not cancerous, but if they are not evenly shaped, bluish in color and/or larger than a pencil eraser, it should be examined by a physician.


Is radiation more harmful to normal cells than to cancerous cells?

Radiation can harm both normal and cancerous cells, but because cancerous cells are often more sensitive to radiation, they may be more likely to be damaged or killed by radiation therapy. Normal cells can repair themselves more effectively than cancerous cells, which helps protect them from the effects of radiation.


Can a mold an your breast give cancer?

Not all moles are cancerous, but if you have noticed any changes in its size/shape/colour etc, then You should go to see your physician to get it checked! Lynda