Vertical Ridges on Fingernails: Causes and Management

Common Causes

Vertical ridges on fingernails are often a normal part of the aging process as the nail matrix's ability to produce a smooth nail plate diminishes with age, typically appearing as longitudinal striations running from the cuticle to the tip of the nail 1, 2, 3
Lichen planus can affect nails causing thinning of the nail plate, longitudinal ridging, and other nail dystrophies, according to the British Journal of Dermatology 1
Psoriasis can cause nail changes including ridging, though often accompanied by other nail manifestations, as reported by the British Journal of Dermatology 1
Darier disease, a rare genetic disorder, can cause nail dystrophy including ridging 1
Repetitive trauma can result in abnormal appearance of nails including ridging 1, 3
Excessive moisture exposure, particularly in occupations requiring frequent hand washing or water immersion, can contribute to nail changes 4

Onychomycosis (fungal nail infection) can cause nail dystrophy, typically presenting with thickening and discoloration of the nail plate, soft and friable nail texture, and often affects toenails more than fingernails 1, 5
Bacterial infections, particularly Pseudomonas, typically cause green or black discoloration of the nails and may coexist with fungal infections 1
Paronychia, inflammation of the nail fold, can lead to nail dystrophy, usually presenting with painful erythema and swelling around the nail 4

Examine all nails for pattern of involvement (number of affected nails) and look for associated skin conditions that might explain nail changes 1
Assess for characteristic pattern of intact longitudinal epidermal ridges stretching to the lunula in cases of trauma 1
If fungal infection is suspected, direct microscopic examination of nail specimens, fungal culture, and PCR testing may be used for diagnosis 1, 6

Medical evaluation is recommended if ridges appear suddenly or change rapidly, are associated with pain, inflammation, or nail separation, according to the British Journal of Dermatology 1, 4
Treatment should target the underlying cause when identified, such as managing inflammatory conditions like psoriasis or lichen planus, avoiding trauma-related factors, or using antifungal therapy for fungal infections 1, 4, 6
Gentle nail care, wearing gloves while cleaning or working with chemicals, avoiding excessive moisture exposure, and regular application of moisturizers to cuticles and periungual tissues can help prevent nail changes 4

In elderly patients, vertical ridges are often a normal finding and typically don't require treatment unless causing functional problems, as reported by the British Journal of Dermatology 1