Piercing Science

Ear Stretching Timeline Planner

Plan safe ear stretching from any starting gauge to any target size. APP-approved minimum healing intervals for every size increment — from 18g to 2 inches.

Professional Context

Part of Poli International's open-source engineering suite. Built to rigorous industry standards.

View Source on GitHub
Scientific Standard

Learn about the science behind this tool in our technical wiki.

Read Wiki: Body Jewelry Materials
Technical Guide

In-depth documentation, usage instructions, and safety protocols.

📖 View Documentation

Patrick's Perspective

"The number of people I've seen blow out their lobes from impatience is extraordinary. The APP guidelines exist because collagen needs time to remodel elastically — rush it and you're trading a permanent scar for a shortcut of a few weeks. This planner gives you the honest timeline, not the one you want to hear."

🖋️

Founder & Piercing Expert

Clinical History Verified

Embed This Tool on Your Website

Paste this snippet anywhere on your site — free to use, no account required.

<iframe
  src="https://poliinternational.com/tools/ear-stretching-timeline/index.html"
  width="100%"
  height="800"
  style="border:none;border-radius:12px;"
  loading="lazy"
  title="Ear Stretching Timeline Planner">
</iframe>

Expert Guidance & Science

How long does each ear stretching step take to heal before the next size?

Healing intervals for ear stretching are not arbitrary — they are based on the biology of collagen remodeling. At smaller gauges (18g–6g), collagen turnover is faster and 4–8 weeks between stretches is typically sufficient for healthy tissue. From 6g to 0g, the stretch increment is proportionally larger relative to current diameter, requiring 6–8 weeks minimum. Above 10 mm, most APP piercers recommend waiting until a plug sits with zero tension and no elasticity loss before attempting the next size — which can take 3–6 months per step.

What is a blowout piercing and how do I prevent it when stretching?

A blowout occurs when the inner lining of the fistula (the healed piercing channel) is pushed through to the back of the earlobe due to excessive stretching force. The result is a visible collar of soft tissue behind the jewelry. Blowouts are caused by stretching too fast, stretching tissue that is not fully healed, or using improper technique such as forced taper insertion. Prevention requires strict adherence to healing intervals, using only the weight of the jewelry to ease the stretch, and stopping immediately if significant resistance is encountered.

What materials should I use when stretching ears at each gauge stage?

Material selection for stretched lobes depends on healing status. During the initial stretch, implant-grade materials only — BioFlex® polymer, ASTM F136 titanium, or implant-grade 316LVM steel. Organic materials like wood, bamboo, and bone are for fully healed, stable tissue only — never during active healing. Stone, glass, and high-polish steel are appropriate for healed tissue. Acrylic should be avoided at all stages: it is porous, cannot be autoclaved, and its surface roughness promotes biofilm formation in the fistula.

Stay in the Loop

Get notified when we release new professional tools for tattoo and piercing artists.