Dr. Snodgrass and Dr. Bush do not ever recommend dilations after hypospadias repair. They are typically not necessary and can cause distress to both patients and their families. Early after surgery, post-operative swelling can cause a fine, thin stream. This will usually improve with time as the internal swelling resolves. True stenosis/scarring internally is rare after TIP and STAG repair, but has been reported after flap-based hypospadias repairs. There is no evidence that routine dilation cures this, since often there is an issue with poor blood supply, which will usually need to be addressed with additional surgery.
Regular dilatation is unnecessary after tubularized incised-plate hypospadias repair.