A teenager's nasty cold may actually have been the symptoms of dangerous infection that still has her doctors puzzled. In the middle of September, Montana Smith, then 14, was suffering from what she ...

Endocarditis, or infective endocarditis, is a rare infection of the inner lining of the heart’s chambers and valves. It is a serious condition that requires immediate medical attention, but it is ...

Endocarditis is inflammation in the heart’s inner lining. One possible symptom is splinter hemorrhages, thin red or reddish-brown lines under the fingernails. These lines appear when small blood ...