TL;DR: Bloody discharge from a male cat's penis is a high-priority emergency that often indicates a life-threatening urinary blockage. You must contact an emergency veterinarian immediately to prevent rapid onset kidney failure and heart issues.
What does it mean if my male cat has bloody discharge from his penis?
Bloody discharge from the penis, or hematuria, in male cats is a clinical sign of severe inflammation, irritation, or obstruction within the lower urinary tract. This is frequently a symptom of Feline Lower Urinary Tract Disease (FLUTD), which can be caused by bladder stones, crystals, or severe feline idiopathic cystitis.
Is bloody discharge from a cat's penis considered a veterinary emergency?
- Urgency Level: High. Seeing blood from a male cat's penis is a critical warning sign of a potential life-threatening urethral obstruction.
- When the urethra becomes blocked by inflammatory debris, crystals, or mucus, the cat cannot empty their bladder.
- This condition leads to acute kidney failure and heart rhythm issues within 24 to 48 hours.
- If you see blood, you must contact an emergency veterinarian immediately, even if your cat is still acting normally.
How can taking a photo of the discharge help the veterinary triage team?
- If it is safe to do so, take a clear photo of the discharge or the cat's genital area to assist the triage team.
- A photo helps the clinician determine if there is active bleeding, severe swelling, or visible "grit" and crystals.
- This allows the hospital to prioritize your cat's care based on the severity of the visible symptoms before you even walk through the door.
Clinical Context (Merck Veterinary Manual)
Balanoposthitis, though rare in cats, can present with mucopurulent preputial discharge. More severe cases can arise secondary to trauma, neoplasia, foreign bodies, urinary tract infection, urolithiasis, or phimosis. Examination of the penis and prepuce, up to the fornix, is crucial to identify predisposing factors, potentially aided by saline infusion through a rigid endoscope or an otoscope under sedation or general anesthesia. Preputial cytology and bacterial cultures may be helpful, particularly in refractory cases, to identify unusual organisms and determine antibiotic sensitivities. Treatment involves addressing underlying causes, clipping hair around the preputial orifice, and thorough flushing of the preputial cavity with a mild antiseptic solution or sterile saline.
Chapter: Urology, Surgery
Source: The Merck Veterinary Manual, 11th Edition (Page 1402)