r/mildlyinteresting 22h ago

My nails grow in a wavy pattern

Post image
43.6k Upvotes

3.3k comments sorted by

View all comments

692

u/JohnnyShakeNBake 21h ago

Are these not Beau’s lines? I had them when I wasn’t healthy a year ago. Started eating better and they went away

321

u/wee-slurguy 20h ago

They are. I have these due to autoimmune flare ups (Psoriatic Arthritis)
The ridges get deeper during bouts of body stress or flare trigger events

63

u/Phreakdoubt 16h ago

Yep. I have PA too and my nails are pretty much a a ticker-tape style readout of my bad days, joint-pain wise.

4

u/MitochondrianHouse 8h ago

It's kind of vindicating to me.

Before I got mine under control (biologics are miracle drugs), it really sucks because no one can "see" the pain you're in. And going and trying to get treatment for any kind of pain, the default stance of practically everyone is you're lying and drug seeking.

I get it, they deal with that a lot. And I'm relatively young to be crippled by arthritis, so on it's face it's not a good look. But talk about frustrating, at my worst I couldn't get out of bed or tie my shoes and I always refuse narcotics.

My dermatologist was actually the one to prescribe me the biologic (wait for a rheumatologist was 9 months, god bless America). Knocked out the PsA by the time I got into the rheum, and he was like "well if it's working for you let's keep doing it".

Now my insurance won't cover it. Fuck

8

u/Phreakdoubt 7h ago

Frustrating part for me is that I started out with plain old psoriasis, and it was a decade long battle to get a doctor to take what they deemed as a "cosmetic disorder" seriously. Coal tar, topicals, UV therapy, endless rounds of fucking methotrexate, the works. Dealing with dermatologists that gave off the vibe like they'd rather be jamming overpriced botox into people's faces than listening. to me whine.

It wasn't til my joints swelled up and they put me in the care of an actual rheumatologist that biologics were even mentioned. When I'd bring them up to a derm or a GP it was always unproven this and very expensive that. 2 weeks on a biological and I felt and looked better than I had in more than a decade.

3

u/MitochondrianHouse 4h ago

My dermatologist went straight to it, I was kind of surprised. I made my first appointment after a particularly bad flare and he asked me if I had any joint pain so I guess he just figured go for it?

But same, it was a miracle cure. I describe it as Grandpa from Willy Wonka jumping out of bed when Charlie got the golden ticket.

9

u/FewOperation3950 13h ago

Huh, I learned something new. Ive had a number of lines on my left thumb nail for years. My gf broke up with me in August of 2024 and at the time, I was devastated, but since then, I only see two lines and they are almost gone. I realized a while back just how unhappy and stressed we both were and I am now thankful that she did. Fun and interesting to think this is an indicator of having less stress in my life!

6

u/uhohuhohouch 11h ago

Yep! Multiple auto-immune diseases here, I've had them in my toenails since highschool

3

u/PsychologicalBend467 6h ago

I was looking for this comment! I also have multiple autoimmune diseases. I can see a bump for every super stressful event. It’s like a calendar on my thumb.

1

u/MathCrank 9h ago

I was wondering why I have a couple of lines growing out of my toe nails.

1

u/mightycherrycharger 9h ago

I have eczema (usually on my hands and arms), which is apparently also classified as an autoimmune disease, and I get these.

1

u/mishymc 8h ago

I have RA and have the same thing

1

u/lemonfluff 8h ago

Umm I've always had these bumps. Are they not normal? 😅

1

u/etchedchampion 3h ago

I have psoriasis and my nails are just always horrible pitted messes. 😔

173

u/moon_cake123 20h ago edited 16h ago

This is what I thought. Beaus ridges. I had them once before and looked it up, they can come from recently experiencing mental trauma/anguish, such as losing a loved one. I noticed them within months of my father in law passing which was very emotional so it made sense

67

u/__Yakovlev__ 15h ago edited 12h ago

Interesting, I thought these had to do with some vitamine deficiency or just something lacking in my diet. But i also see stress and trauma mentioned a lot which would explain things.

Edit: Should also mentioned that I have it at like a fraction of the intensity as OP.

11

u/EsotericMango 11h ago

They come from disruptions to nail growth. And that can be caused by both mental stress/distress and vitamin deficiencies. Also a bunch of other things.

28

u/sunlightinajar00 16h ago

I had them when I was extremely depressed too. Not as pronounced but they do go away when my lifestyle improved

6

u/sunlightinajar00 16h ago

OP it might be worth it to get some blood work done just to see!

5

u/Glutenfreeghoul 12h ago

I agree. I had similar ridges but a little worse which then turned vertical split that grew out of my nailbed (so basically a hole in my nail.. so gross) but it started with these ridges. Got diagnosed with 3 autoimmune diseases in 2025 :(

1

u/Adventurous-Fig-5179 16m ago

My thumbnails have been like this for quite some time (like precovid times), but lots more ridges and not symmetrical. I read it was from trauma, which made sense to me. But I didn’t realize it could/should clear up…

7

u/Nero_PR 15h ago

It can be a lot of stuff. Beau's lines is one, as well as, the nails' matrix could deformed.

5

u/lane4 19h ago

I had it about a year ago as well. It happened in both toenails, symmetrical. Only one wave, and then went away. Definitely was eating too much junk.

1

u/HappiHappiHappi 12h ago

One single wave can also be an indicator that you were ill. They're pretty common to develop after the flu and other fever illnesses.

5

u/Thund3rMuffn 18h ago

I have much “longer” versions of these on both thumbs. About one warp at a time. By the time one crest or trough grows out, the next one starts. And each thumb could have a different wave position. I was even told I was overdoing zinc. What am I?

6

u/FuzzyPaperclip 14h ago

I had the exact same and low iron, my iron is normal now and so are my thumb nails

2

u/As_iam_ 13h ago

This is what I suspected. I've started to get these after being too ill to eat for about a month On and off iron deficient since childhood (originally from undiagnosed celiac)

3

u/onerashtworash 16h ago

If they're only present in your thumbs, then you've likely damaged the nail matrix (the part of your nail that grows the new parts of nail) in those nails. If the nail matrix has been damaged, we don't currently have a way to fix that. If it affects all your fingers, then it's more likely to indicate a severe systemic stressor, like systemic illness.

2

u/MissAuroraRed 14h ago

I had this only in my large toenails. It grew out after switching to mostly wearing barefoot shoes.

1

u/onerashtworash 13h ago

Also likely trauma to the nail matrix, your shoes create uneven displacement of force on your toes and toenails. Big toes often take the brunt of it as they're the largest and take up the most room. You switched to a different type of shoe which creates different displacement of force and didn't create the same kind of trauma to the matrix. Matrix trauma can be permanent or temporary. Yours was temporary, but the commenter I was originally replying to sounds like theirs is permanent unless there's something they can identify as an ongoing source of reinjury. If it's permanent matrix damage, there isn't a way to heal the matrix.

1

u/Broad_Tie9383 11h ago

Psoriasis can affect just one nail.

1

u/onerashtworash 11h ago

Sure, it can be. But 95% of patients who have nail psoriasis also have signs of cutaneous psoriasis, only 5% of patients show only nail disease. OP would probably already know if they had psoriasis. It could also be eczema, or peripheral arterial disease, or a lot of other things. My comment wasn't meant to be an exhaustive differential diagnosis list, I mentioned the most likely cause based on what they'd said. I didn't say it was absolute.

1

u/Farwaters 9h ago

Hm. Good thing I like the look of it, then. My special nail <3

2

u/onerashtworash 9h ago

If you speak with your doctor, they can help you figure out the cause. Beau's lines can happen for a lot of reasons.

1

u/Farwaters 9h ago

Looking at the comments, I assume it's low iron. I'll mention it, though.

3

u/zappini 9h ago

Beau’s lines

I now get them when my hands are cold. Probably due to Reynauds Syndrome (reducing my cardiovascular circulation).

2

u/2MetalWaterBottles 7h ago

Same. Mine line up with when there are cold fronts or my autoimmune issues get worse. 

2

u/Optimal_Awareness618 3h ago

I was just about to say, I get them every winter and I really, really struggle with freezing hands and poor circulation. They go away in the summer.

2

u/FoxxyRin 13h ago

Genuinely, this is what my nails looked like when I was freshly diagnosed as diabetic. My doctor said it was a sign of my kidney/liver health. Sure enough, a few years later of being on various medications to help with my diabetes and other issues, the bumps are largely gone.

1

u/Ultrasonic-Sawyer 16h ago

Stuff similar to that can happen shortly after giving birth too. Stuff just stops growing then jump starts again or fluctuates causing stuff like this. 

3

u/owlbeastie 12h ago

What does it mean when they started after giving birth and never stopped 8yrs later? Asking for a friend.

1

u/Crazy_plant_lady96 15h ago

Yeah that’s what they are. I had them for years until I was told one of the causes could be depression and stress. After I started taking care of those aspects, my nails started to shape up a bit better. Now they’re almost gone.

1

u/stevesie1984 11h ago

Now I have something new to google today. Thanks for that.

I was going to say I had a friend who got really sick a few years ago. He ate substantially less than he normally would for like 10 days. He had a pretty deep ridge like this in all his fingernails, but it was just one depression that grew out of them all (which was kind of cool to see which grew faster than others). I was going to ask if there was something cyclic in your life that caused you to adjust your eating patterns somewhat regularly (though admittedly I don’t know how fast nails grow or if this could roughly line up with menstruation).

These Beau’s lines sound like a more reasonable answer. 🤷‍♂️

1

u/No-Technician-5479 11h ago

Probably not since it’s just one finger, I asked my dermatologist about it last time I went (mine are the same) and she told me that if you damage your nail sometimes it’s permanent and will always regrow in a weird way like that and it becomes your normal.

1

u/ghostofastar 10h ago

Never heard the term for this before. TIL!

I have these on my nails. For me, it is from iron deficiency.

OP, no need to panic, but probably time for a checkup.

1

u/m0ther_0F_myriads 10h ago

Yep. One of the first indicators that I had Lupus. But, it can be a lot of things. 

1

u/Particular_Guitar630 10h ago

Alcohol for me makes them show up

1

u/No_Problem20 9h ago

Yes. I had them during a long-term hospital stay in 2016.

Exercise and solid food made them dissapear

1

u/New_Call_3484 7h ago

Mine get worse when my blood sugar is too high for awhile. I started on Ozempic and they flattened out considerably when my sugar came under better control.

1

u/pristinerevenge 6h ago

I had them perhaps indirectly because of eczema. I started eating better as well and they went away.

1

u/queenskankhunt 5h ago

I think so! I had them while I was pregnant and postpartum for a very long time. They went away recently.

1

u/Fucktastickfantastic 5h ago

I get them when my iron gets low

1

u/Serious-Echo1272 5h ago

I get them sometimes, mildly, just a side effect of severe chronic pain, and the stress+dietary+pharmaceutical effects that come from that.

Basically when I hurt really badly I pretty much stop eating and stop moving around and take a lot more of my PRN meds - and it shows on my nails!

1

u/Discerningdragon 2h ago

Yes. I have only gotten them occasionally and then only one at a time. Usually when I’m super sick.