These black lines on fingernails may look like bruising or internal coloring - not like you just accidentally created an edgy ...

Pollutants, infections, and lung cancer may cause black mucus or phlegm. Below, we discuss these and other more common causes. Air pollutants, including particles of dirt or industrial chemicals ...

Changes in nail colour, shape, or texture may indicate underlying health issues or nutrient deficiencies. Nail changes can be ...

Skin discoloration refers to any change in your natural skin tone. Common causes include birthmarks, infection, and skin pigmentation disorders. Some birthmarks, such as dermal melanocytosis ...

From bug bites to fungal infections to autoimmune disorders, there are a lot of conditions that can affect your skin, hair, and nails. These conditions affect not only our health, but also your ...