Can be caused by cardiac disease or malnutrition. Vertical nail ridges, which extend from your cuticle to the tip of your nail are fairly common and often become more numerous as you age. Vertical...
Longitudinal Brown Lines Longitudinal brown lines form because of increased melanin produced by nail matrix melanocytes. They are associated with: Addison's disease; Nevus at the nail base; Breast...
False positives in pregnancy tests are very rare, but not unheard of. You can get a false reading if you leave the test too long, as the integrity of the result can be jeapordised if left out for too...