A new dark brown or black streak also deserves professional assessment, especially if it widens, changes, extends onto the surrounding skin, or appears without an obvious injury.
Most dark streaks are not melanoma, but a clinician should evaluate suspicious changes promptly.
How Long Does Nail Recovery Take?
Nail treatments cannot immediately replace damaged nail material.
A fingernail grows only a few millimeters per month and may require approximately four to six months to replace itself completely. Toenails grow more slowly and may take a year or longer.
Improvement should therefore be judged by the condition of new nail emerging from the base rather than expecting old damage at the tip to disappear.
Even after the cause is corrected, the damaged portion must grow out.
The Bottom Line
Olive oil can temporarily condition dry nails and cuticles, but it is not a universal cure for brittleness, vertical ridges, or peeling edges.
The most effective home strategy is usually to moisturize consistently, minimize repeated water and chemical exposure, keep nails short, wear protective gloves, and take breaks from damaging cosmetic treatments.
Las leves crestas verticales suelen ser una parte normal del envejecimiento. Surcos horizontales, cambios bruscos, decoloración, dolor, engrosamiento o anomalías que afecten a muchas uñas pueden requerir evaluación médica.
Evita mezclas ácidas o irritantes, y no tomes grandes dosis de vitaminas o minerales sin determinar si realmente los necesitas.
Las uñas sanas crecen lentamente. La protección y la paciencia —no un baño puntual— suelen ser las verdaderas claves para mejorar.
