I had a BMX this May and tissue expanders placed. The drains came out 2 weeks later and the left never drained much. Shortly after, the left side starting getting very hard, especially on the bottom. After the first fill, I noticed immediate redness on the left and there was pronounced swelling. The right side had more saline, but the left looked 3 times bigger. I started taking antibiotics (Keflex) and 2 days later my left drainage site reopened and I started gushing out yellow bleachy-smelling fluid. The swelling and redness subsides, but I'm still draining almost 2 weeks later. I can also feel the edge of the expander on the left, the underside is still red (particularly 1 spot) and I'm in pain most of the time. Surprisingly, the culture did not grow anything, so there may have been no infection to begin with. Anyone else have a similar experience?