This topic is about dealing with frequent leaks from a urostomy pouch, specifically a Hollister one-piece system, after initially having months of trouble-free use. The person experiencing this issue is looking for advice on how to stop these leaks, which have become quite frequent and disruptive.

Here are some helpful insights and advice:

1. **Identify the Source of the Leak:**
- Check where the leak starts. Some recent lots from various companies, including Hollister and ConvaTec, have had manufacturing defects. Keep track of the lot number and contact the distributor or manufacturer for possible replacements.

2. **Re-measure the Stoma:**
- Stomas can change in size and shape over time. Even small changes can affect the seal. Many people with urostomies find they need deeper convexity as time goes on.

3. **Consider Different Products and Accessories:**
- Coloplast SenSura one-piece urostomy pouches have been reported to last 5–6 days, sometimes up to a week.
- The Coloplast SenSura Mio convex line offers options like Light Convex and Deep Convex, which provide more pressure around a slightly retracted stoma.
- Try using Coloplast Brava CeraRing or Brava O-Ring instead of wax rings to improve adhesion and prevent leaks at the flange edge.
- Some users have found success with medical bonding cement applied to the back of the flange for a stronger seal, achieving up to 7 days of wear.
- A strip of tape across the top of the pouch can help reduce downward pull.

4. **Skin Preparation:**
- Avoid using alcohol on the skin around the stoma as it can dry out and irritate the skin, affecting adhesion.
- After showering, gently pat the area dry or let it air-dry. Avoid using lotions or moisturizers before applying the appliance.

5. **Consider Body Changes:**
- Changes in weight or a looser abdominal wall might require switching to a deeper convex wafer.

6. **Seek Professional Help:**
- An ostomy nurse (ET/WOC) can provide valuable assistance by evaluating the stoma shape, wafer fit, and recommending suitable accessories. If you don't have access to one, try contacting a local hospital's wound-ostomy clinic or the manufacturer’s support line for guidance.