Whereas rheumatoid arthritis is an autoimmune disease that causes joint malfunction due to inflammation, osteoarthritis is a mechanical disease brought on by the destruction of joints through wear and tear. Osteoarthritis is the most common form of arthritis, with approximately 27 million Americans over the age of 25 having been diagnosed with it.
A blood clot is a thick mass of menstrual blood that is expelled from your body when you menstruate. Clots are most common during the heaviest part of your flow â which is usually the first few days. Blood Clots look like chunky, jelly-like blobs that vary in size and color.
Blood Loss and Clots. Though it can vary from month to month, periods usually start off with a light flow, get heavier, then taper off. On average, women lose about 2 to 4 tablespoons of blood during each period. In terms of pads or tampons, that means changing them out every 2 hours or more. If you need to change out less than every 2 hours -- or have quarter-size or larger clots -- let your doctor know. Small clots of blood are common.