Diseases, Conditions, Syndromes

Q and A: Bleeding moles and skin checks

DEAR MAYO CLINIC: I have a significant number of moles. While most do not bother me, I have at least one that bleeds from time to time. Should I see my doctor for a mole that bleeds?

Oncology & Cancer

Lower exposure to UVB light may increase colorectal cancer risk

Inadequate exposure to UVB light from the sun may be associated with an increased risk of colorectal cancer, particularly in older age groups, according to a study using data on 186 countries, published in the open access ...

Medical research

New model simulates the temperature rise of laser-heated skin

Laser treatment is now commonplace across various fields of medicine including dermatology, where it is commonly used to remove scars, wrinkles, and freckles. The technology, however, has a major downside: despite continued ...

Biomedical technology

Dynamic tattoos promise to warn wearers of health threats

In the sci-fi novel "The Diamond Age" by Neal Stephenson, body art has evolved into "constantly shifting mediatronic tattoos"—in-skin displays powered by nanotech robopigments. In the 25 years since the novel was published, ...

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