Oncology (General Cancer)/Dark spots


My husband is a 32 year healthy man. We noticed a dark spot on his big toe nail and now it looks like it has gotten bigger and there are other little spots in other areas of the same toe. He has not dropped or smashed his toe that he can recall. After doing an internet search, we were concerned with what we saw. The spot is an almost perfect rectangle that seems to be spreading across his nail and it is a dark brown color but also ranges to a light brown in other areas.

Although highly unlikely, a dark spot under the nail that is getting larger, and not related to trauma (injury) needs to be seen by a good dermatologist, since melanoma is a possiblity.  There are lots of other things, however, including trauma he didn't notice, fungal infection, and even benign moles under the nail.  Please have it checked out soon.  

Oncology (General Cancer)

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Donald Higby, M.D.


I can answer almost all questions related to the treatment and natural course of most kinds of cancer, especially cancers of prostate, colon, lung and breast.


I have been a practicing medical oncologist for 36 years, and have been chief of service at a major medical center for 25 years. I've also done research in cancer treatments.

American Society of Clinical Oncology

New England Journal of Medicine American Journal of Medicine Journal of the American Society of Clinical Oncology Hematology Transfusion Medicine

MD, Stanford University Internal Medicine residency, St. Louis University School of Medicine, St. Louis, MO Medical Oncology Fellowship, Roswell Park Cancer Institute, Buffalo, NY

Awards and Honors
America's Best Physicians, last 14 years

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