White wavy lines texture on a surface

Profile: Yellow Nails

Definition: Variation in the appearance of nails with the emergence of a slight discolouration to a dark yellowish hue visible on the nails, which can be benign (dye, etc.) that gradually disappears or severe. This can be accompanied by a thickening, a split in the nail, and the cessation of growth.
Internal and external causes: Fungal infections, chronic pulmonary conditions, internal malignant tumours, lymphatic obstructions, rheumatoid arthritis, thyroid disorders, yellow nail syndrome, side effects of medication (tetracyclines, quinolones, clofazimine, etc.), melanonychia.
How to reduce or eliminate: The treatment of yellow nails depends on the cause.
Preventative steps to take: /