Health 2 min read

Floppy Tail Syndrome in Crested Geckos: What It Is and Prevention

What floppy tail syndrome (FTS) looks like in crested geckos, its suspected causes, why it matters for the hips and egg-laying, and how to prevent it.

Checked against 4 sources

Short answer

Floppy tail syndrome (FTS) is when a crested gecko's tail flops over its back or to the side while it hangs upside down, often with a dip or twist at the base of the spine. It is usually blamed on sleeping upside down, and sometimes on metabolic bone disease. It can lead to deformity of the tail base and hips, and to trouble passing droppings or eggs. Prevent it with plenty of branches and leaves, and see a vet if you notice it.

What it looks like

In floppy tail syndrome, the tail hangs over the gecko’s back or to the side when it is upside down.1 One keeper describes it flopping at about a right angle, with a dip at the base of the spine or a twisted base.2

A note on the evidence

We have not found published veterinary research on floppy tail syndrome in crested geckos. What follows comes from ReptiFiles and experienced keepers, so treat the causes as likely rather than proven, and involve a vet.

Possible causes

  • Sleeping upside down repeatedly.12
  • Deformity of the tail base and hips.1
  • Metabolic bone disease can also cause it, according to the MorphMarket discussion.2 ReptiFiles lists a wavy tail among the signs of MBD in crested geckos.4 See crested gecko metabolic bone disease.

Why it matters

ReptiFiles lists difficulty passing droppings or laying eggs as signs.1 The MorphMarket post notes it can cause problems for laying females, but not always.2

Prevention

  • Fill the enclosure. ReptiFiles says cluttering the terrarium with hiding spots and decor discourages sleeping upside down.1 The RSPCA recommends branches or vines and tall, broad plants.3
  • Give daytime hides such as half coconut shells or cork bark tubes, so the gecko has better places to sleep than the glass.3
  • Prevent MBD with a complete powdered diet, calcium-dusted insects and a 5% UVB bulb.4

Treatment

ReptiFiles advises an appointment with an exotics vet, and says the vet may recommend removing the tail to prevent further deformity of the spine or hips.1 Crested geckos do not regrow their tails,3 so this is a decision to make with your vet.

Common questions

Is floppy tail syndrome painful?

We have not found a veterinary source that says. Because it can involve deformity of the tail base and hips, have a vet examine any gecko with signs.

Can floppy tail be reversed?

ReptiFiles says it can be prevented or managed by changing the enclosure, and that a vet may recommend removing the tail to prevent further deformity. We have not found evidence that an established deformity reverses.

Should I breed a crested gecko with floppy tail?

One experienced keeper on MorphMarket advises against breeding a gecko whose tail base is twisted, and ReptiFiles lists difficulty laying eggs as a sign. Ask a vet before breeding any affected female.

Sources

Numbers in the text link to these sources. We checked each one on the date shown.

  1. 1Crested Gecko Floppy Tail Syndrome (FTS)ReptiFiles. Checked Oct 29, 2026.
  2. 2Floppy tail Syndrome in Crested GeckosMorphMarket Community (keeper discussion). Checked Oct 29, 2026.
  3. 3Caring for your Crested GeckoRSPCA. Checked Oct 29, 2026.
  4. 4Crested Gecko Metabolic Bone Disease (MBD)Mariah Healey. ReptiFiles. Checked Oct 29, 2026.

Update history

  • : First published.
  • : Re-checked every claim against its sources; corrected wording, numbers and attributions.