The most common cause of those funny ridges down the middle of thumbnails is surprising – and it’s reversible. The ridging, also called habit-tic deformity, is caused by flicking the nail and adjacent cuticle.
This practice is a tension-releasing habit that many people have. When done often, the cuticle callouses and thickens, altering nail growth under the cuticle and a ridged nail slowly emerges.
An Easy Fix
The fix is to control the flicking and hydrate the cuticle and nail. A smooth nail will emerge over time. Learn more on this by visiting my new advice page: Why Do My Thumbnails Ridge Down the Center?
If you know someone troubled by this type of nail ridging, share the info with them – they will be thrilled! In all my decades of dermatology practice, I’ve seen this condition repeatedly but can’t remember one patient who made the connection on their own. The habit of nail flicking can be subconscious!
Do you need advice on more common topics? Then definitely check out my Dermatology Advice section! You will easily find answers to all your questions here. I’m building this page up with help, tips, and advice.
I’ve been writing blogs filled with guidance since 2009. That’s over 800 posts and index pages filled with skin care info. Unfortunately, they are difficult to find due to the limits of web technology. My goal is to put the info that readers desire most often in a place where you can easily find it. When you have a question, look through my Advice Section to see if I’ve covered it.
Where Do You Click to Find This Section?
Look at the top of the page where the gray colored navigation bar is. The second word from the right is where you’ll see ‘Advice’. Hover your mouse over it and you’ll see:
- Skin Care Tips and Advice Center
- Skin Care Blog
Click on the first title that says ‘Skin Care Tips and Advice’ and you’re there! Here are some of the topics ready for you to read.
- Acne Tips
- Anti-Aging Skin Care Tips
- Anti-Aging Skin Care After Menopause
- Chapped and Dry Lips
- Complete Skin Care
- Dry Skin Care Tips
- Eczema Skin Care Tips
- Essential Oils and Botanical Ingredients
- Keratosis Pilaris
- Oily Skin Care Tips
- Rosacea Advice
- Seborrheic Dermatitis
- Sensitive Skin Care Tips
- Skin Cancer Prevention and Risk Reduction Tips
- Sun Protection
- Wrinkles Treatment and Advice
- Comedogenic Ingredients
- And now… Thumbnail Ridging
If you have thumbnail ridging, see the products that have worked beautifully for my patients. These are skin care tricks to heal the thickened cuticle and allow the nail regrow normally. Skin care can transform the appearance of our body’s largest organ and its related structures like the fingernails.