Will lumps either end of scar go or will I need treatment?

skin redundancy at the edges of the scar can happen if the scar was too short in length or if either edges were of unequal length. sometimes these redundancies can resolve on their own. sometimes a minor procedure is required to smooth those out. I would recommend you contact your doctor and discuss your concerns with them

Without a photo, it is difficult to know exactly what is going on.  However, raised areas at the end of a wound, sometimes referred to as a "dog ear",  can occur with difficult would closer.  They will usually flatten out over time as the skin remodels.  I would wait about a year before having anything further done to it.  

Thank you for your question! Those lumps are expected to flatten out over a period of time, it may take up to a year or little bit over. If you want them gone sooner, then you may need to see an expert to see what is the best way to go about treating them. Best of luck!