@debmc1958
I believe seeing the doctors that other members have already mentioned are important, however speech pathologists are very capable in diagnosing and correcting a myriad of speech & language disorders. I have a type of aphasia which is due to epilepsy and mine will never fully be resolved although spee h pathologists have been somewhat helpful. Although it is important to rule out any structural problems or diseases. Would you say your friend distorts the letters L, S and R or has trouble with words that either start with those letters or have those letters in them?