testicle pain is in fact not a problem according to Drs i have talked to. it is also a very rare aide effect, much rarer than ED or loss of libido.
also once again, serum dht is a completely worthless metric to go by, go to any andrologist as a man with hypogonadism they will never grt blood drawn and looj at dht. for anytjing male sexuality, free T to free estradiol ratio and overall levels are where it is at, DHT does not tell you anything because seruk is just leakage from tissues and gives you no clue how high the dht in target tissue is, where it is used and produced. for example you can havd low dht and still experience baldness due to high dht on scalp, you can have low dht and still have a working dick due to high dht in the penis, this will not show in blood levels as 5AR expression is hoghly tissue specific
that is also why the standard "0.25mg lowers dht as much as 1mg" sentence is stupid. how do you know how kuch of a difference there really is on 5AR in tissues where it actually matters? after all nobody gets their spinal fluids examined or their penis tissue biopsied.there is a reason why 1mg is the standard dose for hairloss and 5mg is the standard dose for prostate. why? well it is not so that merck can sell more proscar, after all they could have sold 1 or 2.5mg for the same price
it is because these doses have had the strongrst effect locally and recued tissue dht more than a lower dose. so if 5mg can suppress more tissue dht than 1mg so far that it has a added therapeutic value it probably also gives less side effects