Term: Autoimmune diseases
Definition (plain English):
Conditions where the immune system mistakenly attacks the body’s own tissues.
Exemplos:
- Líquen plano
- Psoríase
- Lupus
How it relates to nails:
Autoimmune diseases can cause nail ridging, thinning, pitting, splitting, or loss. In lichen planus, pterygium formation may occur. In psoriasis, oil-drop patches or onycholysis are common.
Confusable with:
Fungal infections, ageing-related nail changes, or trauma.
Disclaimer:
⚠️ This information is for educational purposes only. It is not a diagnosis. Always seek medical advice if you are concerned.
