What [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]extender[/words] do u use?That's important...be sure that is some good [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]extender[/words].Good quality...Fs,anro-penis,fast-size e.t.c.As soon as u do that breaks(after 1,2 hours it is safe)and u do after 15 minutes.Maybe u give very strong strech.Read the manuel and listen the manuel.If this is the problem take off 1,2 roads...if it is not than watch your penis.I think that u should put away immedialty if u see some discoloration,like your glans becoming blue.Just keep going.It is normal for your glans to become cold and also try dividing the session 3 hours morning....3 hours afternoon maybe...3 hours at evening...I think this will help.All good