Did I take my drains out too early?

Some surgeons do not use drains.  The ones that do leave them in for variable lengths of time.  I leave mine in for 1 week.  If the fluid is leaking out of the drain exit sites put dry gauze on them to collect the fluid.  If you feel an increase in size or the breasts get hot or you feel ill, you probably have accumulation of fluid that needs to be evaluated and addressed.

It is not uncommon to remove drains 4 days after breast reduction surgery.  Most surgeons use a cut off for the amount of fluid that is coming out of them as to when to remove them.  If you have an concerns about fluid building up you should contact you surgeon and se them in person so they can examine you. Best of luck.

Indeed, if you had a strait forward primary breast reduction, removing them 4 days after your surgery is no problem. In my practice, I selectively use drains. If in the rare case you feel like there is a fluid collection, then you need to see your plastic surgeon.