Nail Ridges

Get Email Updates

Related Topics

Nail Ridges Guide

Rosa Cabrera RN

Have a question? We're here to help. Ask the Community.


Health Newsletter

Receive the latest and greatest in women's health and wellness from EmpowHER - for free!

EmpowHER Guest

ask: Why are my thumbnails becoming flat?

By Anonymous

I used to have perfectly rounded fingernails across my nail bed, but have noticed over the years that my thumbnails are becoming flat. Am I not eating enough protein? What is causing this? It's been happening for about two years.

Add a Comment10 Comments

EmpowHER Guest

23 year old male and as of about two years ago mine have become flat. Just thumb nails that is.

October 29, 2013 - 5:52pm

I am 51 and over the past 10 years, I've noticed my thumbnails are flattening, also. My thumbnails used to be stronger and grew much more easily than the rest of my fingernails. Now, it is opposite: my thumbnails have flattened can see and feel the flattened area. The nail also separates into two layers if they do manage to grow beyond the quick. I wonder if this is due to some kind of nutritional deficiency.

October 21, 2012 - 6:37pm
EmpowHER Guest

i'm menopausal for 8 years, and now diagnosed with osteoporosis and my usually indestructible nails ar suddenly turning up slightly at the side edges, enough to cause a snag. nails looking a little flatter at the tips too. i have a good diet and don't usually take vitamins and mineral supplements. maybe i should start?

May 27, 2012 - 2:32am
EmpowHER Guest

I mentioned the change in my thumbnails to my endocronologist (thyroid conditions) yesterday. He said flat thumbnails can be a sign of iron deficiency. So- he is having my iron tested.

February 7, 2012 - 12:00pm
EmpowHER Guest
Anonymous (reply to Anonymous)

I have the same problem. I having be taking iron for 2 months and no change as yet.

April 21, 2012 - 5:57pm
EmpowHER Guest

Me too! I found this article interesting:

January 6, 2012 - 8:13pm
EmpowHER Guest

The same thing is happening to me. I am a 25 year old male. I have noticed this only with my thumbnails. It is mostly happening on my right thumb, but it is also starting on my left. I started noticing this about a year ago.

November 15, 2011 - 12:00pm
Coach Virginia

Dear Anon, thank you for your posting. I'd like some clarification though, how do you mean by "flat"? Are the nail beds (skin beneath your nail) changing shape or is it the actual nail? Have you noticed if this is the case just with the thumb nails? Are these breaking more easily and have become thinner? Do you use your thumb nails at work doing repetitive work? It will be helpful if you could provide more information. Thanks!

April 20, 2009 - 9:46pm
Sunny77 (reply to Coach Virginia)

My actual nails are becoming flat, starting in the middle. Just the thumbnails. They are not thinner or breaking. I do not use them for any work. I do not use polish. This has been happening for years. The flat surface is becoming larger. What do you know about this? Thanks.

November 4, 2011 - 5:58am
Enter the characters shown in the image.
By submitting this form, you agree to EmpowHER's terms of service and privacy policy

All user-generated information on this site is the opinion of its author only and is not a substitute for medical advice or treatment for any medical conditions. Members and guests are responsible for their own posts and the potential consequences of those posts detailed in our Terms of Service.


1549 Health


572 Lives


429 Lives
4 lives impacted in the last 24 hrs Learn More

Take Our Featured Health Poll

Does the thought of doing your taxes stress you out?:
View Results