|Classification and external resources|
Left hand onycholysis: ring and little fingers affected
Onycholysis refers to the detachment of the nail from the nail bed, usually starting at the tip and/or sides. On the hands, it is said to occur particularly on the ring finger but can occur on any of the fingernails. It may also happen to toenails.
Onycho-, from Ancient Greek ónuks, meaning nail, and Ancient Greek lúsis, meaning a loosening.
- Trauma , excessive manicuring
- Infection: especially fungal
- Skin disease: psoriasis, dermatitis
- Impaired peripheral circulation e.g. Raynaud's
- Systemic disease: hyper- and hypothyroidism, reactive arthritis, porphyria cutanea tarda
- Sometimes a reaction to detergents (e.g. washing dishes with bare hands, using detergent-based shampoos or soaps).
- Patients with hepatocellular dysfunction may develop hair-thinning or hair loss and nail changes such as clubbing,leukonychia (whitening), or onycholysis, affecting the nails of the hands and feet.
- Freedberg; et al. (2003). Fitzpatrick's Dermatology in General Medicine (6th ed.). McGraw-Hill. p. 660. ISBN 0-07-138076-0.
- Talley&O'Connor (2006). Clinical Examination A Systematic Guide to Physical Diagnosis (5th ed.). Elsevier. p. 262. ISBN 0-7295-3762-5.
- Weber&Kelley (2010). Health Assessment in Nursing (4th ed.). Wolters Kluwer Health and Lippincott, Williams & Wilkins. p. 193. ISBN 978-0-7817-8160-2.
- Hazin, Ribhi; Tamimi, Tarek I. Abu-Rajab; Abuzetun, Jamil Y.; Zein, Nizar N. (10/01/2009). "Recognizing and treating cutaneous signs of liver disease". Cleveland Clinic Journal of Medicine 76 (10): 599–606. doi:10.3949/ccjm.76A.08113. ISSN 0891-1150.
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