Toenails are the hard protective coverings found on the tips of the toes. They are made of a protein called keratin, which is the same material that makes up hair and fingernails. Toenails grow from the nail matrix, located under the cuticle, and typically grow at a rate of about 1 millimeter per month. Maintaining healthy toenails is important for overall foot health. Regular trimming and proper hygiene can prevent issues such as fungal infections and ingrown toenails. If toenails become discolored, thickened, or painful, it may be necessary to consult a healthcare professional for evaluation and treatment.