https://www.mayoclinic.org/healthy-lifestyle/adult-health/multimedia/nails/sls-20076131

Nail pitting can also be related to connective tissue disorders, such as Reiter's syndrome, and alopecia areata — an autoimmune disease that causes hair loss.

https://www.mayoclinic.org/healthy-lifestyle/adult-health/multimedia/nails/sls-20076131?s=2

See photos of fingernail conditions that warrant medical attention. ... Nail clubbing occurs when the tips of the fingers enlarge and the nails curve around the ...

https://www.today.com/health/what-nail-clubbing-curved-fingernails-can-signal-lung-cancer-t135389

Aug 9, 2018 ... Curved nails, or clubbing of the fingers or toes, can signal lung trouble, ... Lung cancer is the most common cause, although congenital heart defects, ... In clubbing, the nail may curve downward so it looks like the round part of ...

https://symptomchecker.webmd.com/single-symptom?symptom=curved-fingernails&symid=61

Results 1 - 133 of 133 ... Curved fingernails, Upward curving (spooning) of nails · Broken bone (single ... Curved fingernails, Guarding or favoring joint, Joint pain ...

https://medlineplus.gov/ency/article/003247.htm

Apr 14, 2017 ... Nail abnormalities are problems with the color, shape, texture, ... Ridges are tiny, raised lines that develop across or up and down the nail.

http://ask.metafilter.com/245172/My-fingernails-are-curling-under-how-can-I-get-them-to-stop

But this curling under business puts sharp corners on each nail and ... Other than vitamin or oxygen deficiency, what could be causing this?

https://www.zocdoc.com/answers/3782/why-do-fingernail-curve-down

What makes my fingernails curve down at the edges? For a while I ... There are a couple lung conditions that cause the finger nails to "club." The nail takes a ...

https://www.newhealthguide.org/why-do-my-fingernails-curl.html

Fingernails often curve downwards as a result of lack of oxygen. ... Nail clubbing takes place over time and causes the nails to curve around the tips of the ...

https://www.bollywoodshaadis.com/articles/ways-to-stop-your-nails-from-curling-6257

May 19, 2017 ... What makes fingernails curl - Know about causes/deficiency of vitamins, proteins and minerals causing curling of nails and ways how to stop ...

https://www.self.com/gallery/what-your-nails-can-tell-you-about-your-health

May 8, 2016 ... But when your nails start to look off for reasons beyond your failure to ... If your nails are curving down and have a rounded edge—kind of like ...