Common Knitting and Crochet Mistakes (and How to Fix Them)
Most people who knit or crochet have had the same moment.
You pause, look at your project and think something doesn’t quite look right. The edges might be uneven, the fabric may feel tighter than expected, or the piece may slowly be changing shape.
Many of these small issues come from a handful of common causes — missed stitches, changing tension or simple stitch placement errors and the reassuring part is that these things are very common. Almost every maker encounters them at some point, and in most cases the solution is straightforward.
Understanding what causes these small issues can make projects much more enjoyable and help you recognise problems early, before they affect the finished piece.
Below are some of the most common knitting and crochet mistakes, along with simple ways to correct them.
1. Uneven Edges
Edges that look wavy, uneven or slightly loose are one of the most common issues, especially for newer knitters and crocheters.
Why it happens
This usually comes down to missed stitches at the beginning or end of rows. In crochet, it's important to know whether your turning chain is counted as a stitch or not. Uneven crochet edges usually happen because the turning chain is either being counted as a stitch when it shouldn't be, or ignored when it should be counted.
In knitting, the final stitch of a row can occasionally be dropped without noticing or become elongated and loose because it doesn't have stitches either side. As you knit the same stitch at the end of the row then immediately again for the beginning of the row, things can get messy!
How to fix it
Counting stitches at the end of each row helps catch problems early.
In crochet, a simple trick is to place a stitch marker in the first stitch of each row. When you reach the end of the row, the last stitch becomes much easier to identify. Techniques such as stacked stitches can also help create neater row starts.
For that final knitted stitch on the row, try bringing the yarn between the needles to the front and slipping the stitch purlwise to the left needle. This creates a much neater selvedge.
2. The Project Slowly Gets Wider
Sometimes a project gradually increases in width without that being part of the pattern.
Why it happens
As mentioned in the previous section, a common mistake in crochet is working extra stitches into turning chains or accidentally placing two stitches into the same space.
In knitting, accidental yarn overs or knitting into the legs of a stitch can have a similar effect.
How to fix it
Regular stitch counting is the simplest solution and again using stitch markers in crochet to identify the beginning and end of rows.
If the stitch count begins to increase, you can usually identify the row where the extra stitches appeared and correct them before continuing.
When switching between knitting and purling, ensure the yarn travels between the needles rather than over the top which would create the yarn over.
3. The Project Gets Narrower
The opposite problem can also happen, where the piece gradually becomes narrower.
Why it happens
Again that pesky turning chain is the likely culprit or stitches accidentally skipped along the row. It’s easy to do, particularly when the edge stitches blend into the fabric.
When knitting, it's likely that 2 stitches have been worked together or there's a dropped stitch somewhere.
How to fix it
Stitch markers again make this much easier to manage. Placing a marker in the first stitch of each row helps ensure the last stitch is clearly visible when you return to that edge.
Regularly count your knitting stitches and look out for changes in the fabric. As stitches sit directly on top of each other, they create almost vertical columns. Any changes in the flow of this will be noticeable. Also check for small holes where stitches may have been dropped.
4. Fabric That Curls
Some stitch patterns will likely cause natural curls along the edges.
Why it happens
This is completely normal when working in stockinette stitch. The structure of the stitch causes the fabric to curl inward due to the difference in length of a knit and purl stitch. If seaming this isn't a problem but if you want a lovely flat table mat or blanket this could be a problem.
Crochet fabrics usually curl less, but certain stitch patterns can still produce similar behaviour.
How to fix it
There are several ways to manage this:
- adding a border such as ribbing, moss or garter stitch to knitting will help this to naturally lie flat
- blocking the finished piece
- incorporating textured stitch patterns
- In crochet, it's likely that the foundation chain at the bottom was too tight causing this to curve. Try a larger hook size for your starting chain.
Curling is not a mistake — it’s simply a property of certain stitches.
5. Tension Becoming Tighter
You may notice that your stitches gradually become tighter as you work or your first sleeve is much bigger than the second.
Why it happens
Mood, environment and time of day can all cause changes in tension.
- fatigue in your hands
- gripping the yarn more tightly
- concentrating harder on a complex section
- knitting or crocheting for long periods without breaks
How to fix it
Taking regular breaks helps keep tension consistent. Get up and walk around then sit back down comfortably to reset your posture and reduce hunching and tension in the shoulders.
Many makers also find that relaxing their grip on the yarn slightly improves stitch consistency.
If tension changes are affecting the size of a project, checking your gauge can help identify the issue early.
6. Unexpected Holes in the Fabric
Occasional holes can appear where they weren’t intended.
Why it happens
In knitting, holes are often caused by accidental yarn overs, dropped stitches or by splitting the yarn when forming a stitch.
In crochet, they can appear if the hook passes between stitches rather than through the correct loops or by adding in an accidental chain stitch.
How to fix it
Slowing down slightly when inserting the needle or hook usually resolves the issue. Good lighting can also help you see exactly where each stitch is being formed. Regularly checking your fabric and stitch count can also pick these up early on.
If you spot a dropped stitch, you will likely have a ladder in your knitting. Be gentle and careful not to pull the fabric. Grab a crochet hook or similar and work the stitches up the 'ladder' from the relevant side (different for knit and purl stitches). These will likely be a little tighter than their neighbour's but will even out after blocking and wear.
7. Yarn Splitting While Working
Some yarns separate easily when the needle or hook passes through them.
Why it happens
This is more common with:
- loosely spun yarns
- multi-ply yarns
- sharper needle or hook tips
How to fix it
Trying a different needle or hook style often helps.
A slightly blunter tip or a smoother tool can reduce the chance of catching individual strands.
If this doesn't work you may need to switch yarns for this project.
8. Twisted Stitches - Knitting
Many beginners twist stitches accidentally when wrapping yarn incorrectly or mounting stitches differently on the needle. Twisted stitches make the fabric look tighter and slightly slanted or crossed.
This usually happens when the yarn is wrapped around the needle in the opposite direction or when the stitch is mounted differently on the needle.
Twisted stitches are easy to spot: instead of sitting open like a small “V” in stockinette, the legs of the stitch looks crossed.
Fix
Ensure you wrap the yarn around the needle in the correct direction (anticlockwise) and insert the needle through the correct leg of the stitch.
If you drop a stitch and need to place this back on the needle, ensure that this is orientated with the leg at the front leaning to the right.
This is one of the easiest mistakes to correct once you recognise it.
9. Yarn Over vs Yarn Under (Crochet)
In standard crochet stitches, the hook usually wraps the yarn using a yarn over motion — bringing the yarn over the hook from back to front before pulling it through the stitch.
Sometimes, especially when learning, the yarn is wrapped the opposite way. This is known as a yarn under.
Why it happens
This often happens when crocheters are experimenting with different ways of holding the yarn or inserting the hook into stitches. The motion can feel very similar at first, so it’s easy to switch without noticing.
What effect it has
Using yarn under instead of yarn over changes the shape of the stitch slightly. The finished fabric will look:
- tighter and more compact
- slightly more squared rather than rounded
- a little denser overall
Some crocheters intentionally use yarn under for projects such as amigurumi, where a firm, dense fabric can help shapes hold their structure.
How to fix it
If your stitches look tighter or slightly different from a pattern sample, check how the yarn is being wrapped around the hook.
For most crochet patterns, the standard yarn over motion will produce the expected stitch shape.
Once you’re aware of the difference, it becomes much easier to keep the movement consistent.
Simple Habits That Prevent Most Mistakes
A few small habits can prevent many of the issues above:
- As a new knitter or crocheter, count stitches at the end of each row
- Use stitch markers for the first and last stitch
- Take breaks to keep tension consistent
- Work in good lighting so stitches are easy to see
- Swatch before starting garments or fitted projects
Small checks like these make it much easier to catch problems early.
Final Thoughts
Small mistakes are a natural part of knitting and crochet. Even experienced makers encounter them.
The important thing is learning to recognise what’s happening and knowing how to adjust. With a little practice, these small challenges become easier to spot and fix, allowing you to focus on the most enjoyable part — creating something unique.
FAQ
Are small knitting and crochet mistakes normal?
Yes — they are a completely normal part of learning. Even experienced knitters and crocheters occasionally miss a stitch or notice tension changes during a project. The important thing is recognising what has happened and knowing how to adjust.
Should I fix mistakes immediately?
If the mistake affects the shape or stitch count of the project, it’s usually best to fix it sooner rather than later. Small issues are often much easier to correct a few rows back than after working several more sections.
For minor visual differences, some makers prefer to leave them and continue.
Why does my tension change while I’m working?
Tension can vary for several reasons, including:
- fatigue in your hands
- knitting or crocheting at a different speed
- concentrating on a difficult section
- switching tools or yarn
Taking breaks and maintaining a relaxed grip on the yarn can help keep tension more consistent.
Do different needles or hooks affect stitches?
Yes. The material and shape of tools can influence how easily yarn moves while working.
For example:
- bamboo needles grip yarn slightly more
- metal needles allow stitches to slide more freely
- crochet hook styles can change how stitches sit on the hook
Using the same tools for your swatch and your project helps maintain consistent results.
Why does my crochet project slowly get wider?
This usually happens when extra stitches are added unintentionally at the beginning or end of rows. Turning chains are sometimes mistaken for stitches, which can increase the stitch count.
Counting stitches regularly helps prevent this.
Why does knitting curl at the edges?
Certain stitches naturally curl. Stockinette stitch, for example, curls because of the way knit and purl stitches balance tension in the fabric.
Adding borders, textured stitches or blocking the finished piece can reduce curling.
Can mistakes affect the final size of a project?
Yes, especially if they change the stitch count or tension. Over many rows, even small differences can alter the width or length of the fabric.
Checking your work periodically helps catch these issues early.
Is it always necessary to undo mistakes?
Not always. Many knitters and crocheters decide whether to correct an issue based on how noticeable it is and whether it affects the finished piece.
Sometimes a small imperfection simply becomes part of the handmade character of the project.