Symptoms improve after TUIP in about 8 out of 10 men.^{footnote 1} Men notice about a 73% improvement in their scores.^{footnote 1} For example, if you have a symptom score of 25 (severe), it could be reduced to about 7 (mild).

Short-term improvement in BPH symptoms is about the same for TUIP as for TURP. Studies comparing the two types of surgery suggest that the outcomes are similar. Men who have had TUIP generally are less likely to develop retrograde ejaculation than men who have TURP. But men who have TUIP are more likely to need a second surgery.^{footnote 2}

The possible risks of transurethral incision of the prostate (TUIP) include the following:

• Retrograde ejaculation, in which semen flows backward into the bladder, occurs in about 6 to 55 men out of 100.^{footnote 1} Retrograde ejaculation is not harmful.
• Erection problems in men who did not have one of these problems before the surgery are reported in about 4 to 25 men out of 100.^{footnote 1}
• Incontinence occurs in fewer than 1 out of 100 men.^{footnote 1}
• The need for a blood transfusion during surgery is rare.
• For about 10 men out of 100, a second operation is needed after 15 years.^{footnote 1}