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Daytona Beach, FL
A 44-year-old female asked about a 52-year-old female:

What causes lines, ridges & bumps in fingernails & toenails?

1 doctor answer2 doctors weighed in
Dr. David Hettinger
Podiatry 37 years experience
Could be MANY things: Reasons range from prior serious illness, psoriasis, trauma, metabolic disease, infection, etc. It's tough to tell without more details and an exam.

Similar questions

A 45-year-old member asked:

What causes a horizontal ridge or bump on a fingernail?

1 doctor answer3 doctors weighed in
Dr. Jerome Litt
Dermatology 72 years experience
NAIL RIDGE FINGER: A SINGLE HORIZONTAL FINGERNAIL RIDGE IS HARMLESS. IT DEPENDS ON WHICH NAIL, WHEN IT BEGAN, WHAT HABIT DO YOU HAVE WITH THAT PARTICULAR NAIL, AND MORE OF A HISTORY. IT SOUND BENIGN AND HARMLESS. IF YOU ARE CONCERNED, SEE A DERMATOLOGIST.
GA
A member asked:

What causes dark lines under fingernails?

2 doctor answers5 doctors weighed in
Dr. William A Biermann
Medical Oncology 47 years experience
Injury: Trauma and some illnesses can do this. Remember that nails are related to hair but grow more slowly so that an injury to them may show up over time. I often see this in my oncology patient with certain chemotherapy. They well have lines in the nails.
A 59-year-old female asked:

What causes ridges and bumps on fingernails?

3 doctor answers5 doctors weighed in
Dr. Bradley Younggren
Emergency Medicine 23 years experience
It depends: Changes in fingernails can be indicative of an underlying medical disorder. Ridges or bumps can be related to iron deficiency. Anemia, lupus, heart disease, and thyroid disorders can also can changes to the fingernails. Fungal infection also can cause bumps and discoloration of the nailbed.
Canada
A 26-year-old male asked:

What cause faint lines on toenails?

2 doctor answers3 doctors weighed in
Dr. Glenn Aufseeser
Podiatry 10 years experience
Nail lines: Changes in nails can result from trauma, fungus, and systemic conditions such as psoriasis. I would recommend evaluation by a podiatrist or dermatologist if you are concerned.
VA
A female asked about a male:

What causes black lines in the toenails?

3 doctor answers4 doctors weighed in
Dr. Jeffrey Kass
Podiatry 29 years experience
Sometimes this: Is a normal variant, sometimes it could be blood that is dried, melanoma at times needs to be ruled out.
Last updated Nov 28, 2017

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