ビタミンDの欠乏による爪板の乾燥や脆性性など、爪が亀裂を持っている理由はいくつかあります。。ネイルベッドへのさらなる損傷を防ぐために、潜在的に危険な物質にさらされた後、石鹸と水で徹底的に洗うことが重要です。

これらの亀裂の原因を判断し、必要に応じて適切な治療を受けるために、皮膚科医または医師に会うことが重要です。
There could be several reasons why your fingernail have some cracks, such as dryness or brittleness of the nail plate due to a deficiency in vitamin D. It's also possible you have been exposed to something harmful, such as harsh chemicals or detergents while cleaning your hands. It is important that you wash them thoroughly with soap and water after exposure to any potentially hazardous substances in order to prevent further damage to the nail bed.

It is important that you see a dermatologist or doctor to determine the cause of these cracks and receive proper treatment if necessary.