Talc is the main ingredient in baby powder, medicated powders, perfumed. powders and designer perfumed body powders. Because talc is resistant. to. moisture, it is also used by the pharmaceutical industry to manufacture. medications and is a listed ingredient of some antacids. Talc is the.
Sacroiliitis refers to inflammation of one or both sacroiliac joints, and is one cause of unilateral low back pain. With sacroiliitis, the individual may experience pain in the low back, buttock or thigh, depending on the amount of inflammation.
The sacral region (sacrum) is at the bottom of the spine and lies between the fifth segment of the lumbar spine (L5) and the coccyx (tailbone).1  See: Lumbar Spine Anatomy and Pain.ailbone Pain Video. Unlike the individual vertebrae in other regions of the spine, the vertebrae in the sacral region as well as the coccyx are fused. The coccyx (also called the tailbone) is located at the base of the spine and is composed of four fused vertebrae.