What are the common symptoms and treatment options for urethral obstruction in cats?

Common symptoms of urethral obstruction in cats include straining to urinate, frequent attempts to urinate with little to no urine produced, blood in the urine, and vocalization or signs of pain while urinating. Treatment options may include catheterization to remove the obstruction, fluid therapy to correct dehydration, medications to relieve pain and inflammation, and dietary changes to prevent future obstructions. In severe cases, surgery may be necessary to address the underlying cause of the obstruction.