GreenLight laser therapy

• Even with high-quality surgery, it’s common to develop a retrograde (dry) ejaculation. This means that semen goes into the bladder instead of out of the penis during orgasm to be safely passed out with your urine.
• This is the only common long-term side effect, and many men find it a good payoff to gain permanent relief from urinary symptoms.
• There’s a very low risk of developing impotence or incontinence.

Aquablation therapy 

• There’s a lower risk of developing retrograde ejaculation, although you may notice that you have less semen volume.
• There’s a higher risk of bleeding and of more apical and anterior tissue getting left behind, possibly resulting in the higher risk of needing another procedure at a later stage.

Transurethral Resection of the Prostate (TURP) 

• With a traditional monopolar glycine TURP, there’s a rare but potentially dangerous risk of having a reaction called TUR syndrome if the resection takes more than one hour.
• For very large prostates, only a skilled surgeon will be able to control the bleeding and resect enough tissue to achieve good long-term outcomes or minimise the risk of complications such as clot retention.
• The risk of retrograde ejaculation is high, but the risk of incontinence and impotence is low if the procedure is done properly.