What blood tests one should get done before starting propecia for hair loss?

I tell everyone to get a PSA test prior to treatment.  Other than that no tests needed.  Best, Dr. Emer.

Baseline tests are not needed. But if someone wants to get tests, a few are logical:DHTfree and total T,estrogen (estradiol)PSA if over 40cholesterolliver function testsfasting blood sugar and HA1c if risk factorssex hormone binding globulin

There are no blood tests required to start on propecia. If you want to do a blood test see your family doctor and may be do PSA blood test one before starting the treatment and one after three months to see if there is any change. 

There are no required blood tests for Propecia. If you are over 35, you might consider getting a DHT level which probably will not change when you take the drug but it may reflects a lower testosterone which you can also measure. As men get older, testosterone levels do drop. I would not expect your T levels to drop or rise significantly with finasteride