 [ Symptoms ] i am a 45 year old man and have little facial hair basically i have no sideburns what can i do to promote hair growth  i do have some facial hair chin cheeks neck but there are other bare patches as well this did not bother me when i was younger but as i age i would like the option of growing a beard to mask skin blemishes wrinkles etc what are my options what can i start to do on my own and if that does not work when should i consult my doctor [ Disease ] a renal scan generally does not involve any anesthesia it is more like a ct scan or mri exam so you should not need someone to drive you home unless you would feel more comfortable not driving in a renal scan the patient generally lies on a flat table and receives an injection of a radioactive material into a vein after this material has had time to circulate the kidneys are scanned when the procedure is finished the patient gets up off the table and goes home it is pretty straightforward if you find driving stressful if you are older or if you feel the test may generally wear you out  then its certainly fine to recruit someone to do the driving for you better safe than sorry right hope this helps