The New Times, from Kigali, the capital city of Rwanda, reported on 26 March 2006, reports that the old national flag of Rwanda is sometimes still used in international events, in spite of having been superseded in 2001.
Some women appear to have a flat butt because they either have poor posture, lack mass in the hip, or a combination of both. You can improve the shape of your butt with exercises. Corrective exercises focus on improving your posture, while strength exercises help you increase muscle mass.
Cause: Piriformis syndrome. The piriformis is a muscle found deep inside the buttocks. It connects the lower spine to the upper thighbone and runs directly over the sciatic nerve. If this muscle goes into spasm, it can put pressure on the sciatic nerve, triggering symptoms of sciatica.