 [ Symptoms ] does having diarrhea one hour after taking a birth control pill affect the pill is effectiveness  the diarrhea was from something i ate from dinner it is not chronic or ongoing [ Disease ] these severely painful forms of arthritis are caused by sharp crystals that form in the knee and other joints these crystals can form as a result of defects in the absorption or metabolism of various natural substances such as uric acid which produces gout and calcium pyrophosphate pseudogout treatment is aimed at controlling inflammation with anti inflammatory medications and at aiding the metabolism of the various chemicals that may lead to crystal formation