How long does it generally take for a fingernail to grow back fully?

The full regrowth of a fingernail typically takes 4 to 6 months. This time frame is influenced by several factors, including the individual's health, age, and overall nail care practices. During this period, nails grow at an average rate of about 1/8 inch per month. Therefore, after a nail is lost or significantly damaged, it generally takes around 4 to 6 months for it to completely regenerate and reach its full length again. Understanding this timeframe can help in managing expectations during nail recovery and emphasizing the importance of nail health during the regrowth process.