http://www.renewintimacy.org/pdfs/UIbookSample.pdf
Clamps must be released every 2–4 hours to empty the bladder. Allowing urine to
remain in the bladder for prolonged periods increases the risk of urinary tract infections.
Do not use a clamp in conjunction with other incontinence devices (except absorbent
pads), with indwelling catheters, or with implanted penile prostheses.
Contact your doctor immediately if any swelling, bruising, discoloration (change in
color), or sores develop on the penis while using any clamp. In many cases some simple
adjustments and additional practice using the clamp will alleviate the problem.
Do not use near open sores. After sores are completely healed, the clamp may be used
again.
Patients with altered mental status should not be allowed to wear a clamp.
Do not hesitate to contact your physician if you have any concerns or questions about
using a clamp.
If a clamp is not properly positioned, secured too tightly, or left on too long it can cause
swelling, bruising, and ulceration (sores) on the penis. If these signs are ignored, deep tissue
necrosis (destruction of the tissues inside the penis) may occur; this damage cannot be seen.
Because of these potential complications, doctors and other health care professionals may be
hesitant to recommend clamps to their patients.