4 doctors weighed in:

What causes ridges and bumps on fingernails?

4 doctors weighed in
Dr Bradley Younggren
Emergency Medicine
3 doctors agree

In brief: It depends

Changes in fingernails can be indicative of an underlying medical disorder. Ridges or bumps can be related to iron deficiency.
Anemia, lupus, heart disease, and thyroid disorders can also can changes to the fingernails. Fungal infection also can cause bumps and discoloration of the nailbed.

In brief: It depends

Changes in fingernails can be indicative of an underlying medical disorder. Ridges or bumps can be related to iron deficiency.
Anemia, lupus, heart disease, and thyroid disorders can also can changes to the fingernails. Fungal infection also can cause bumps and discoloration of the nailbed.
Dr Bradley Younggren
Dr Bradley Younggren
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Dr Heidi Fowler
Psychiatry

In brief: Horizontal Nail

ridges: (Beau's line) have a variety of possible causes: 1.
nail injury (biting nails, crush injury or pressure to nail in runners). 2. Chemicals (some nail polish removers. 3. ) Infections- yeast/ fungus, viral warts. 4. Skin cancer (malignant melanoma). 5. Renal, liver, thyroid diseases, Raynaud's Disease. 6. arsenic poisoning or silver overdose 7. malnutrition. 8. Zinc Deficiency.

In brief: Horizontal Nail

ridges: (Beau's line) have a variety of possible causes: 1.
nail injury (biting nails, crush injury or pressure to nail in runners). 2. Chemicals (some nail polish removers. 3. ) Infections- yeast/ fungus, viral warts. 4. Skin cancer (malignant melanoma). 5. Renal, liver, thyroid diseases, Raynaud's Disease. 6. arsenic poisoning or silver overdose 7. malnutrition. 8. Zinc Deficiency.
Dr Heidi Fowler
Dr Heidi Fowler
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