AÂ surgical procedure that can be used for pattern baldness. In some instances it can be used to treat alopecia but only if the patches are small and have remained unchanged and untreated for at least 2 years. It is a process where hair is removed from the scalp and grafted to the affected area. You must therefore have enough donor hair to transplant. It may take 2 operations to thicken the hair to an acceptable level. Procedures vary and can cost between Â£4,000 – Â£30,000. The results are not guaranteed.