I'm not very brainy when it comes to all these, but...
Doctors can determine when you go bald right? So If i give a blood test, will they be able to test whether the Testosterone and DHT/ androgen levels are too high or not?
No, they can't. If DHT is high, a person who's genetically not susceptible to baldness will still not go bald. If the person is strongly susceptil, then even with a normal level of DHT they could lose their hair.
