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Darah, male cats who are stranguric (frequent attempts to urinate little or no urine) are usually "blocked" which means that their penile urethra is plugged with a gritty/mucoid plug of material that was formed in an irritated bladder secondary to idiopathic (unknown cause) cystitis (inflammation of the bladder) and passed into the urethra along with urine. This is considered an emergency as a cat blocked for as little as 36 hours will suffer renal failure. It's important that an on-call vet attend to Hugo at your earliest convenience. Please respond with further questions or concerns if you wish.
Less than 2% of these male cats suffer from a bacterial urinary tract infection. Some of these cats aren't blocked but are experiencing the pain of a cystitis. Because caretakers can't know if their cat is blocked or not, it's a case of "better safe than sorry" when deciding if their cat needs urgent attention. I understand your logistical constraints, however.