Preventing an ingrown toenail & cutting nails correctly
Most ingrown toenails develop through incorrect cutting technique and pressing footwear. With the right habits the risk can be clearly lowered — including after treatment.
How do you cut toenails correctly?
The most common avoidable cause of an ingrown toenail is incorrect cutting. Here is how to do it right:
- Cut after bathing: Cut the nails after a shower or foot bath, when they are softer and less prone to splitting.
- Cut straight: Cut the nail straight across — not round and not into the corners. This lets the nail corner grow out beyond the skin fold and stops it pressing into the nail fold.
- Not too short: Leave the nail slightly protruding at the front. Nails that are too short encourage ingrowth because the skin grows over the nail edge.
- Smooth corners gently: Only lightly round off sharp corners with a file — do not cut them out. Pointed nail remnants are a common cause of ingrowth.
- Clean tools: Use clean, straight nail nippers or scissors and disinfect the tool. This lowers the risk of infection.
- Check regularly: Check the nail edges regularly. At the first sign of redness, act early (pressure relief, foot bath) instead of waiting.
Which shoes and socks help prevent it?
After cutting technique, external pressure is the second most important factor. What matters with shoes and socks:
| What to check | Favourable | Unfavourable |
|---|---|---|
| Toe box | Sufficiently wide, toes can lie flat | Tapered, presses the big toe inwards |
| Length | About 1 cm of space in front of the longest toe | Too short — the nail hits the front |
| Fit | Firm hold at the heel, loose at the forefoot | Sliding forward, constant pressure on the toes |
| Socks | Breathable, moisture-wicking, wrinkle-free | Too tight, soaked, pressing seams |
What can you do in everyday life to avoid relapses?
- check the feet briefly every day for redness and pressure points
- dry the feet well after sport and showering, change socks
- relieve the toes regularly, barefoot or in wide shoes
- consider podiatric support with strongly curved nails
- follow the aftercare recommendations after a treatment
- seek professional advice early with recurring symptoms
Consistency pays off, especially after a treatment has healed: correct care and suitable footwear are the best protection against a recurrence (ingrowing again).
Who has an increased risk?
People who should be particularly attentive:
- people with anatomically strongly curved or wide nails
- athletes with high running and stop-and-go loads
- people with diabetes, circulatory disorders or a weakened immune system
- those who often wear tight or pointed footwear
- anyone who has already had an ingrown nail
For children and athletes we have dedicated guides with specific tips — linked at the end of this page.
Frequently asked questions
Cut the nails straight across, not round and not into the corners. Do not let them get too short and only lightly round off sharp corners with a file. Best done after bathing, when the nails are softer, and with clean tools.
Shoes with a sufficiently wide toe box, about one centimetre of space in front of the longest toe and a firm hold at the heel. Pointed, too short or too tight shoes increase the pressure on the nail fold and encourage ingrowth.
Not every case can be prevented — some people have anatomically more strongly curved nails. Correct cutting technique, suitable footwear, good foot hygiene and responding early to irritation, however, clearly lower the risk, including after treatment.
A podiatric nail-correction brace can help correct the direction of growth with recurrently strongly curved nails. It is individually fitted and worn over a longer period. Whether it makes sense is decided case by case by podiatry or a doctor.
What matters is correct nail care (cutting straight), suitable shoes, dry feet, observing the nail edges and — if needed — podiatric support. Ingrowth can never be completely ruled out, but the risk can be noticeably reduced.
With diabetes, circulatory disorders or a weakened immune system, daily foot checks, careful care and early professional help are particularly important, because wounds heal less well. Regular podiatric support is often sensible here.
Sources
- AWMF (Association of the Scientific Medical Societies in Germany): guidelines on unguis incarnatus / nail disorders.
- Specialist literature on prevention and aftercare in onychocryptosis (ingrown toenail).
- Internal clinical experience of the Nagelneu Laser specialist practice from more than 10,000 treatments carried out in the field of laser and nail surgery.
This article is for general information and does not replace individual medical advice. With acute symptoms or an existing inflammation you should seek a medical assessment.