Uploaded July 2021 | Updated September 2026, 16 hours ago

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Top 10 nail abnormalities that you need to recognize because they can be a sign of a serious medical condition! Nail ridges, white spots, black lines, and yellow nails, we're going to discuss it all!

0:00 Intro
0:27 Koilonychia (spoon nail)
1:25 Digital Clubbing
2:49 Beau Lines (ridges)
3:46 Melanoma of the Nail
4:48 Leukonychia (white spots)
5:51 Contact Dermatitis
6:59 Nail Pitting
7:31 Splinter Hemorrhage
8:24 Yellow Nail Syndrome
9:25 Half and Half Nail

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📸 Image Credits:
- Clubbing: By Herbert L. Fred, MD and Hendrik A. van Dijk, cnx.org/content/m14916/latest/, CC BY-SA 3.0, commons.wikimedia.org/w/index.php?curid=11893501
- Clubbing: dermnetnz.org/topics/hypertrophic-osteoarthropathy-and-digital-clubbing
- Clubbing: By Desherinka - Own work, CC BY-SA 4.0, commons.wikimedia.org/w/index.php?curid=7605105
- Schamroth sign: cmaj.ca/content/191/45/E1251
- Koilonychia: dermnetnz.org/topics/iron-deficiency
- Koilonychia: By CHeitz, flickr.com/photos/coreyheitzmd/15023020192, CC BY 2.0,
- Beau lines: cmaj.ca/content/192/36/E1040
- Beau lines: cmaj.ca/content/182/3/e149
- Beau line: By LynnMcCleary - CC BY-SA 4.0, commons.wikimedia.org/w/index.php?curid=36477640
- Leukonychia totalis: By Alborz Fallah - Own work, CC BY-SA 4.0, commons.wikimedia.org/w/index.php?curid=64606153
- Leukonychia: By Keitei - Own work, CC BY 2.5, commons.wikimedia.org/w/index.php?curid=1236445
- Melanoma: cmaj.ca/content/187/12/909
- Melanoma: sgim.org/web-only/clinical-images/black-stripe
- Contact dermatitis: doi.org/10.1503/cmaj.170264
- Contact dermatitis: dermnetnz.org/topics/nail-cosmetics-allergy
- Splinter hemorrhage: dermnetnz.org/topics/splinter-haemorrhage
- Yellow nail syndrome: cmaj.ca/content/181/9/614
- Half and half nail: cmaj.ca/content/180/6/687
- Pitting: dermnetnz.org/assets/Uploads/scaly/nail-psoriasis
- Blood tubes: By Tannim101, commons.wikimedia.org/w/index.php?curid=37060094