Bumps can occur with Sculptra regardless of combining with threads. That's why it's important to pick your provider carefully. When done well, Sculptra gives a very nice, soft augmentation without bumps, but is temporary. With regards to threads, any result gotten will not last past 3 to 4 months, and this short time frame has nothing to do with the threads dissolving, which takes about a year or so. It has to do with the fact that your tissues will not stay in the position the threads pull them. We learned this 20 years ago when threads were first promoted and were actually permanent. So, once again, pick your provider carefully. If they conflate thread longevity with results, i.e. about a year or so, they are either not being honest or they are not experienced.