Figure 3: HE staining and UPK immunohistochemical staining of wounds after surgery. HE changes in the prostatic urethra of the mice after constructing the TULP model at (a) 1 day, (b) 3 days, (c) 5 days, and (d) 7 days. Expression of UPK in the prostatic urethra of the mice after construction of the TULP model (e) 1 day, (f) 3 days, (g) 5 days, and (h) 7 days. The arrow indicates the site of wound. Scale bars = 300 μm. TULP: transurethral laser prostatectomy; UPK: uroplakin; HE: hematoxylin-eosin.