- Nail signs:
- Beau’s lines, nail shedding, pitting, longitudinal ridging, discolouration
- Nail infections:
- Acute paronychia, viral warts, nail fungal infection
- Environmental nail disorders:
- Brittle nails, chronic paronychia
- Traumatic nail abnormalities:
- Ingrown toe nail, pincer nail, onychotillomania, onychogryphosis
- Nail disorders in skin diseases:
- Psoriasis, lichen planus, twenty-nail dystrophy, alopecia areata, eczema
- Nail changes in systemic diseases
- Drug-induced nail abnormalities
- Hereditary and congenital nail disorders
- Nail tumours:
- Benign nail tumours: warts, fibroma, pyogenic granuloma, myxoid cyst, glomus tumour, melanocytic naevus, onychomatricoma
- Malignant nail tumour: squamous cell carcinoma, melanoma