 [ Symptoms ] how does higher altitude affect urnation  i am going to tahoe and yosemite to around 6 000 to 8000 feet i am 66 and have slowed urination and sometimes have problems on international flights at altitude in a pressurized cabin i normally live in dallas  [ Disease ] altitude should not effect your ability to urinate you may have an enlarged prostate common at age 66 and difficulty urinating is common at any altitude