Paraphilmosis, is a condition in which the extruded penis cannot be withdrawn back into the preputial cavity. In this study, the 2 dogs that showed prolonged erection. exposed penis from the sheath and hair surrounding the prepural orifice for several days, were ana1ysis of blood and urine ard carried out surgical treatment. In urinalysis, there were struvites, spermuria and bactera (streptococci) in urine. Firstly, these dogs were treated with non-surgical method, however severe necrosis of the Penis was developed form prolonged exposure and vascular compromise. Finally, partial penile amputation and preputial lengthening were performed and resulted in successful treatment