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.
You may notice that your menstrual blood becomes dark brown or almost black as you near the end of your period. This is a normal color change. It happens when the blood is older and not being expelled from the body quickly. Temporary thick, heavy flow isn't necessarily cause for concern.hen, during your period, your body sheds the uterus lining along with blood. The amount of blood and fluid lost is usually between 4 and 12 teaspoons each cycle. The average menstrual cycle lasts 28 days (counting from the first day of bleeding to the first day of the next cycle).