Lower tract infections â These include cystitis (bladder infection) and urethritis (infection of the urethra). Lower urinary tract infections commonly are caused by intestinal bacteria, which enter and contaminate the urinary tract from below, usually by spreading from the skin to the urethra and then to the bladder.
And again, in Rheumatoid Arthritis, the onset is almost always symmetrical. Later in the development of the Rheumatoid Arthritis, the sounds can change to creaking, as in a knee; clicking, especially in the neck; or grinding, in ball joints like shoulders.
Causes of rheumatoid arthritis. Rheumatoid arthritis is an autoimmune condition, which means it is caused by the bodyâs immune system attacking itself. However, it is not yet known what triggers this.Normally, your immune system makes antibodies that attack bacteria and viruses, helping fight infection.auses of rheumatoid arthritis. Rheumatoid arthritis is an autoimmune condition, which means it is caused by the bodyâs immune system attacking itself. However, it is not yet known what triggers this.