TL;DR: Pus-like discharge from a cat's penis indicates a likely infection or urinary issue requiring a vet visit within 24 hours, or immediate emergency care if the cat cannot urinate.
What causes pus-like discharge from my cat's penis?
Noticing discharge or pus at the tip of your cat's penis is a sign of an underlying issue, typically involving the urinary tract or the reproductive system. This fluid, often yellowish, white, or green, is usually the body's response to infection or severe inflammation. Common causes include feline lower urinary tract disease (FLUTD), bacterial infections (UTIs), or balanoposthitis, which is an inflammation of the penis and its protective sheath.
Is discharge from my cat's penis a veterinary emergency?
- Schedule a veterinary appointment within 24 hours if you notice discharge alone to prevent the condition from worsening.
- Seek immediate emergency care if the discharge is accompanied by an inability to urinate, straining in the litter box, vocalizing in pain, or lethargy.
- Be aware that male cats are prone to life-threatening urinary blockages that require instant medical intervention.
How does a photo of the discharge help my veterinarian?
- A clear photo provides vital information for remote triage or your vet's initial assessment.
- Visuals allow professionals to see the exact color, thickness, and volume of fluid before the cat grooms it away.
- Evidence helps differentiate between simple irritation and severe infection, ensuring your cat receives the correct priority level for care.
Clinical Context (Merck Veterinary Manual)
Balanoposthitis, resulting in preputial discharge, is rare in cats. When present, the penis and prepuce should be thoroughly examined to the level of the fornix to identify underlying predisposing factors such as trauma, lacerations, neoplasia, foreign bodies, urinary tract infection, or phimosis. Saline infusion through a rigid endoscope or an otoscope can facilitate examination, potentially requiring sedation or general anesthesia. Preputial cytology and bacterial cultures may aid in identifying unusual organisms and determining antibiotic sensitivities, especially in refractory cases. Treatment involves correcting predisposing factors, clipping hair away from the preputial orifice, and flushing the preputial cavity with a mild antiseptic solution or sterile saline.
Chapter: Urology, Infectious Disease
Source: The Merck Veterinary Manual, 11th Edition (Page 1401)