Generally, they can occur from one of the following causes: 1  Infection. 2  Environmental exposure. 3  Malignancy. 4  Occupational exposure. 5  Collagen vascular disease (an inflammatory condition of the body including the lung) 6  Drugs. 7  Idiopathic (unknown causes)
01-08-2006, 09:34 AM. Check to see if you have the tap marker (handle) turned down to far. The jam nut (lever collar) for holding the marker straight should not be touching the lever bonnet. The bonnet is the nut that holds everything to the faucet. If it is touching, this will cause your sticking Faucet.
These chemicals also cause local capillaries to leak fluids (inc. vasc. perm) 1.) Fluids contain clotting factors and antibodies. 2.) This exudate causes edema (swelling) a.) Dilutes harmful substances. b.) Brings in O2 and nutrients. c.) Clotting proteins enclose site 2.