In general, your toenails grow an average of 1mm per month.  Therefore, it may take anywhere from 6 months to a year for a toenail to grow back.  Some things that may affect their growth include the presence of a fungal infection (which can be determined by your doctor), decreased circulation, or other systemic diseases.  If you have any questions regarding the health of your toenails, or if your toenails are causing you pain or discomfort, call our office today and make an appointment to see the doctor.  She will examine your feet and determine if a treatment plan in needed.