This Simple Finger Test Could Reveal Signs Of Lung Cancer And Other Health Conditions
The so-called Schamroth window test helps to identify a rare type of deformity in the fingers and fingernails—known as “digital clubbing” or “finger clubbing”—which people with some heart or lung problems exhibit. According to Cancer Research U.K., finger clubbing occurs in stages. First, the base of the nail (nail bed) softens and the skin next to the nail bed becomes shiny. Second, the nails begin to curve more than normal when looked at from the side....