Weak and brittle fingernails
The most common causes for brittle and weak fingernails are nutrition and hormonal changes. Postmenopausal women have low estrogen levels which can contribute towards low bone mineral density. It is one of the earliest causes of osteoporosis or bone loss.
Excellent fingernail strength has been seen in patients within months of starting osteoporosis treatments. Researchers have proved strong links between osteoporosis and nail strength. Calcium and magnesium content in finger nail can be predictor of bone mineral density. Nails that easily break around the fingertips are characteristic of osteoporosis. Dryness, discoloration, and ridges in fingernails are also great predictors of bone pathologies.