Most navel jewelry comes back for one reason: the bar is the wrong length.
Too short and it pulls. Too long and it catches on waistbands, migrates, and heals at an angle. This page tells you how to measure, what length you actually need, and when to change it.
1. Gauge: what thickness you need
| Gauge | Millimeters | Who it’s for |
|---|---|---|
| 14G | 1.6 mm | Standard for almost all navel piercings |
| 12G | 2.0 mm | Stretched or older, well-healed piercings |
| 16G | 1.2 mm | Uncommon for navel — usually a mislabeled listing |
If you were pierced at a studio in the last decade, it is 14G unless you asked otherwise. Check your current jewelry before ordering.
2. Bar length: the part that goes wrong
Length is measured end to end, including the balls. The right length leaves 1–2 mm of clearance on each side — enough for the skin to sit flat without pinching.
| Length | Typical use |
|---|---|
| 6 mm | Very shallow navel, or a healed piercing with minimal tissue |
| 8 mm | Short / petite anatomy, or after a downsize |
| 10 mm | Standard. Most fresh navel piercings and most adults |
| 12 mm | Deeper navel, or swelling during healing |
| 14 mm | Deep navel, weight change, or early pregnancy |
| 38 mm (flexible) | Second and third trimester — bends with the belly instead of pulling |
3. How to measure (two ways)
Method A — measure the jewelry you’re wearing
Take the bar out and measure it end to end with a ruler, excluding the balls if they unscrew. That number is your length.
Method B — measure the piercing
With the jewelry out, measure the distance between the top hole and the bottom hole, then add 2–3 mm. That’s your bar length. Don’t measure a healing piercing — wait until it’s settled.
Not sure? The Five-Bar Size Set ships all five lengths so you can try them and keep the one that sits flush.
4. When to downsize
A fresh piercing is done with extra length for swelling. Once the swelling drops — usually 4 to 8 weeks — that extra length starts to migrate. Signs it’s time:
- The bar slides freely and you can see 3 mm or more of metal on one side
- The top ball tips forward when you sit
- The skin around the holes sits flat instead of slightly puffy
Switch to a bar 2–4 mm shorter. The Two-Bar Downsize Set includes both the 12 mm healing bar and the 8 mm downsize bar.
5. Pregnancy: the three stages
| Stage | When | What you need |
|---|---|---|
| 1 | Weeks 14–24 | 10 mm titanium — your normal length still works |
| 2 | Weeks 24 to birth | 38 mm flexible shaft (PTFE) — bends with the belly, no pulling |
| 3 | After birth | 8 mm titanium — your belly returns, the bar should too |
Switch when the bar starts to sit tight against the skin at either end, or when you can feel it pull when you bend. Don’t wait for redness. The 3-Stage Set includes all three plus a stage card.
6. Material: why we only use unplated titanium
Titanium in the ASTM F136 grade is the standard for implant-grade body jewelry. It is lighter than steel, doesn’t contain nickel in the alloy at levels that trigger most reactions, and — unlike plated jewelry — has nothing to flake off.
We don’t sell plated navel jewelry. No PVD, no gold-tone coating, no “surgical steel” with a mystery alloy. If a piece isn’t titanium, it isn’t in this store.
Common questions
Can I wear a shorter bar while my piercing is still healing?
No. Healing piercings need extra length for swelling. Downsizing too early causes embedding.
My bar is 10 mm but it still catches. Why?
Length isn’t the only variable — the top ball size and the dangle length matter too. A large top on a 10 mm bar behaves like a longer bar. Try a smaller top first, then a shorter bar.
Does the length change with weight?
Yes. A 10–15 lb change can move you one size. That’s why we sell the Fit Kit with all five lengths.
What if none of the five lengths fit?
Message us with a photo and the measurement. We’ll swap to the right one — free within 60 days.