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.
Referred pain is where an injury or problem elsewhere causes pain at the back of the knee. This can be from the lower back or lumbar spine and pain is referred down into the knee through the sciatic nerve. Or pain from the patellofemoral joint or between the kneecap and thigh bone can also refer pain into the back of the knee.