PENILE MASS OR GROWTH
WHAT THIS SYMPTOM USUALLY MEANS
A mass on the penis or prepuce can indicate infection, inflammation, or tumors— especially in older intact males.
MOST COMMON CAUSES
MILD
• Benign wart
• Skin tag
MEDICAL
• Transmissible venereal tumor (TVT, in some regions)
• Papilloma
• Mast cell tumor
• Preputial inflammation
EMERGENCY
• Rapidly enlarging mass
• Bleeding tumor
• Mass obstructing urination
RED FLAGS
• Bleeding
• Ulceration
• Sudden growth
• Pain
• If unsure, treat as urgent.
AT-HOME CARE
• Prevent licking
• Keep area clean
WHAT A VETERINARIAN WILL CHECK
• Cytology
• Biopsy
• Ultrasound (if deep)
• Regional lymph nodes
MOST LIKELY DIAGNOSES
• Papilloma
• TVT
• Mast cell tumor
• Infection
WHEN TO SCHEDULE A VISIT
Today: bleeding or painful
1 week: small, stable growth
LONGEVITY IMPACT
Early tumor detection improves survival significantly.
LONGEVITY CONSULT
Useful for long-term tumor surveillance.