The topic at hand is about a sudden increase in the size of a stoma, which can be quite concerning. Imagine waking up to find that your stoma has grown significantly overnight, as one person experienced when their stoma diameter increased from 57 mm to 76 mm. While the color and mucus seemed normal and output was still passing, they faced the challenge of not having appliances large enough to accommodate the new size. They planned to contact their ostomy nurse for advice. Here are some insights and advice from others who have faced similar situations:

1. Food-related temporary swelling or blockage:
- Some people have noticed their stoma swelling dramatically and painlessly after consuming certain foods, like a large amount of mixed nuts or too much sugar.
- This swelling can last from one to three days and may suddenly resolve with a rush of output when the blockage clears, returning the stoma to its normal size.

2. Seek professional help quickly:
- If you can't reach your ostomy nurse or if the swelling doesn't subside, it's important to go to a hospital emergency room rather than an urgent-care clinic, as they have the necessary ostomy resources.

3. Possible prolapse:
- A sudden increase in size might indicate a stoma prolapse. Temporary solutions include manual reduction, using granulated sugar, or applying cold water to shrink it.
- One person created a tapered plastic "cradle" to support the prolapsed stoma and prevent the wafer edge from causing injury.

4. Appliance issues during swelling:
- When a stoma becomes oversized, it might exceed the cut-holes of your appliances. You may need to wait for it to retract or use a temporary larger opening, but be prepared for potential leakage and bleeding if the wafer presses on the swollen stoma.

5. Rare possibility of calcified "stones" forming in the stoma:
- In rare cases, an enlarged stoma might be due to the formation of calcium-composite stones, as experienced by one person who passed stones measuring 3 mm and 5 mm.
- If you pass any solid objects, it's advisable to seek medical evaluation.

6. General recommendations:
- Keep an eye on the output, pain, and color of your stoma. A good color and some gas or output are reassuring signs.
- Have emergency supplies of larger or cut-to-fit wafers on hand, and consider adjustable or convex options if prolapse or swelling happens again.
- Document any episodes with photos and measurements to share with your stoma nurse or surgeon.