One sign of a possible problem is a change in the color of the toenail. Discoloration of the toenails may be due to a variety of reasons. Once the underlying cause is determined, treatment can be administered to restore normal color to the nail. A fungal infection causes a toenail to become discolored. The nail usually turns a dark color from dirt or debris that has become trapped underneath the nail. Other symptoms of fungal infection include a foul smell, thickened nail, crumbled nail or a dull toenail that is misshapen.
Definition of affirm for English Language Learners. : to say that something is true in a confident way. : to show a strong belief in or dedication to (something, such as an important idea)
â¢ FIRM (verb). The verb FIRM has 2 senses: 1. become taut or tauter. 2. make taut or tauter. Familiarity information: FIRM used as a verb is rare. â¢ FIRM (adverb). The adverb FIRM has 1 sense: 1. with resolute determination. Familiarity information: FIRM used as an adverb is very rare.