Ankle bursitis occurs when one or more of the bursae sacs in the ankle become inflamed. This can cause pain, swelling, and difficulty moving the ankle. Bursae are small, fluid-filled sacs ...

With hamstring tendonitis, pain can develop at these bony areas and deep at the bottom of your buttocks. Bursae are small, fluid-filled sacs that lay in between tendons and bones to decrease friction ...

You might also have severe pain in a muscle area that is already inflamed and experiences extra stress. Bursitis is when the fluid-filled sacs (called bursae) that cushion joints become inflamed. This ...