What does a dark line in your fingernail mean?
What does a dark line in your fingernail mean?
A narrow black line that has formed vertically underneath your nail is called a splinter hemorrhage. It occurs for a variety of reasons and may be harmless or a sign of a more serious health condition. This condition is called a splinter hemorrhage because it may look like a wood splinter under your nail.
What is wrong with my fingernail?
Common causes of fingernail problems include injury, infection and skin diseases such as eczema and psoriasis. Causes of toenail problems include trauma, ill-fitting shoes, poor circulation, poor nerve supply and infection.
Can vitamin deficiency causes black lines on nails?
According to research published in The Journal of Family Practice in 2012, vitamin B12 deficiency can affect nails by turning them entirely blue, or causing blueish-black pigment with “wavy longitudinal dark streaks, brownish network like pigmentation and longitudinal darkened streaks”.
What could be causing dark lines under fingernails?
Another cause of black lines on the nails is a splinter hemorrhage, which occurs when blood vessels under the fingernail are damaged, often due to injuries, such as hitting. More seriously, a black line or lines on the nails can indicate the presence of melanoma, a dangerous form of skin cancer.
What causes dark rings under fingernails?
Since dark lines underneath fingernails are due to several different causes, its treatment approach may vary accordingly. If the dark streak under the fingernail is due to traumatic injury, usually nothing more needs to be done. If the dark line is due to lodging of a foreign body underneath the nail, you should consult your doctor.
What does black line on your fingernails mean?
A narrow black line that has formed vertically underneath your nail is called a splinter hemorrhage. It occurs for a variety of reasons and may be harmless or a sign of a more serious health condition. This condition is called a splinter hemorrhage because it may look like a wood splinter under your nail.
Why do I see black lines on fingernails?
Why Do Your Fingernails Have Black Streaks? Lack of Nutrition. Your nails can give you insight into whether you are receiving enough nutrients, particularly protein and calcium. Bleeding. Bleeding underneath the nails is known as a splinter hemorrhage and this sometimes causes black or dark red lines. Fungal Infections. Melanonychia. Nail Injury. Melanoma.
