Dull, Lackluster Nails
Nails that appear dull and lackluster are sometimes a sign of aging, but they could also indicate some serious illnesses, such as anemia, congestive heart failure, liver disease, or malnutrition.
White Nails
If most of the nail appears white with darker edges, it may indicate liver problems such as hepatitis. White nails, either partially or entirely, could also be related to kidney disease, typhoid fever, leprosy, tuberculosis, or hereditary factors.
Yellow Nails
Fungal infection is a common cause of yellowing nails. As the infection worsens, the nail bed may gradually shrink, and the nails can become thicker and brittle. Yellow nails could also indicate serious conditions such as thyroid disease or psoriasis, although this is less common.
Blue Lunulae
The appearance of blue lines on the nails indicates oxygen deficiency in the body. Blue nails are common in chronic cardiopulmonary insufficiency, malignant anemia, and may also be caused by medications like bleomycin.
