What's wrong with adult nails?

There are many reasons for uneven nails, the most direct is that the function of nail matrix cells is affected, or the deck itself is destroyed, as follows: The first reason may be related to basic diseases, such as anemia, severe gastrointestinal dysfunction, lack of vitamins and trace elements, affecting the function of nail matrix, so that its synthetic deck protein structure is abnormal, showing unevenness. The second reason is that there are skin diseases around the nail itself, such as eczema, dermatitis, psoriasis, lichen planus, etc., which affect the function of the nail matrix cells and cause uneven deck. The third reason is that the deck itself is damaged, such as deck trauma or due to certain fungal infections that destroy the deck structure and show uneven deck.