9 Common Knitting Mistakes (And How to Fix Them)
Updated November 2026
Mistakes are a natural part of knitting, but they don’t have to derail your project! Whether you’re struggling with dropped stitches, uneven tension, or twisted stitches, we’ve got simple solutions to keep your knitting smooth and stress-free.
Knitting is one of life’s great pleasures - a meditative, creative act that brings joy, relaxation and a sense of accomplishment but also sometimes...a little bit of frustration. Whether you're a seasoned pro or just casting on for the first time, mistakes are inevitable. But here’s the good news: every knitter, no matter their experience, has been there before!
In this guide, we’ll explore some of the most common knitting mistakes (and a few you might not even realise you’re making) and how to fix them. Whether you’re untangling a mysterious extra stitch or wondering why your project looks a little off, we’ve got you covered.
The short version: Most knitting mistakes can be fixed without ripping out your whole project. Count your stitches often and use stitch markers to catch extra or missing stitches early. Swatch before you start, then keep checking your gauge as you go. Put a lifeline in before tricky sections so you always have a safe point to go back to. Finally, block your finished piece to even out small wobbles, and cast off with a larger needle or a stretchy bind-off so your edges don’t pinch.
1. The Case of the Mysterious Extra (or Missing) Stitch
The Mistake
You start with 40 stitches, but somehow you end up with 42… or 38. Where did they go? Or worse, where did they come from?!
Why It Happens
This is one of the most common beginner mistakes and can be incredibly frustrating. It usually happens due to accidental yarn overs (adding extra stitches) or dropping stitches without realising. It can also occur if you're not keeping an eye on your stitch count when transitioning between rows.
How to Fix It
- Count your stitches regularly, especially at the end of each row.
- Find where it crept in: lay your work flat and look down each column of stitches. A dropped stitch shows up as a ladder of loose horizontal strands; an extra stitch often shows as a small hole (an accidental yarn over) or a column that suddenly splits in two.
- If you accidentally added a stitch, look for an unintended yarn over and simply drop it off the needle.
- If you lost a stitch, examine your work closely to find the missing loop. Use a crochet hook to pick it up before it unravels further.
- If the mistake is only a row or two back, tink (knit backwards, undoing one stitch at a time) to just before it rather than ripping out the whole row.
- Stitch markers placed every 10 stitches can help prevent mistakes in long rows.
Extra tip: If you frequently add stitches at the edges, try slipping the first stitch of every row to create a neater edge and help maintain stitch count.
2. Tension Troubles: Too Tight, Too Loose or Just Right?
The Mistake
Your stitches are either strangling your needles or so loose they could double as lace. Or your tension starts out fine and quietly changes halfway up a sleeve. Either way, the finished project can look uneven and misshapen.
Why It Happens
New knitters often knit too tightly because they grip the yarn and needles too hard, creating excessive tension. On the other hand, experienced knitters sometimes knit too loosely, especially if they get too relaxed with their tension. Tension also drifts over the life of a project: a stressful week, a long break, or switching from knitting at home to knitting on the train can all change it.
How to Fix It
- Swatch first: Always knit a small test swatch before starting a project to see if your tension matches the pattern’s gauge. We made a video all about how to swatch perfectly.
- Check your grip: Try holding your yarn with a relaxed but controlled grip.
- Experiment with different needles: Metal needles tend to be more slippery and can help loosen tight knitting, while bamboo needles provide more friction, helping with loose tension.
- Consider your environment: Stress can cause tight knitting, while knitting while watching TV can lead to loose stitches (unless you're watching something intense!)
- Keep checking as you go: On a garment, measure your stitches over 10cm every so often and compare it with your swatch. If it has drifted, go up or down a needle size to bring it back, and make a note of which needles you used so the second sleeve matches the first.
Bonus tip: If your hands feel tense while knitting, take breaks to stretch your fingers and wrists. A relaxed knitter is a consistent knitter!
3. Twisted Stitches
The Mistake
Your stitches look oddly twisted, making your fabric tight, uneven and difficult to work with.
Why It Happens
This happens when stitches are mounted incorrectly on the needle or when wrapping the yarn in the wrong direction. It’s especially common in continental knitting, where the yarn placement can shift if you’re not careful.
How to Fix It
- Pay close attention to how you insert your needle into the stitch. If it feels unusually tight, double-check that the stitch isn’t twisted.
- The leading leg of the stitch should be at the front of the needle unless you’re intentionally twisting stitches for a specific effect.
- If you're consistently twisting stitches, slow down and practice making clean, even stitches before increasing speed.
4. Forgetting to Check Your Gauge
The Mistake
You finish a sweater, and it looks nothing like the sample size. Either it’s too tight, too big or completely out of proportion.
Why It Happens
Ignoring gauge swatching is one of the biggest pitfalls for knitters of all levels. Every knitter has a unique tension, and even using the recommended yarn and needle size doesn’t guarantee the same outcome as the pattern designer intended.
How to Fix It
- Always knit a gauge swatch before starting a big project. It’s an extra step but will save you a lot of heartache later.
- Wash and block your swatch, as some yarns stretch or shrink after washing.
- Adjust your needle size if your gauge doesn’t match. Use smaller needles for tighter stitches, larger needles for looser ones.
Extra tip: Gauge matters more for fitted garments than scarves or blankets, but it’s always good practice to check! For more on how different fibres behave, read our guide to getting gauge in natural fibres.
5. Laddering in Magic Loop or DPNs
The Mistake
You’re knitting in the round, but there’s a noticeable gap or “ladder” where you switch between needles.
Why It Happens
Ladders occur when tension is uneven between transitions in Magic Loop or double-pointed needles. If the first stitch on a new needle is too loose, it creates a visible gap in your knitting.
How to Fix It
- Pull the first stitch tightly when switching needles to even out tension.
- Shift the start point slightly every few rounds to distribute tension more evenly.
- Use a smaller circular needle if possible. Some projects work better on 22cm circulars (like these from Chiaogoo) instead of DPNs.
Pro tip: Try knitting the first two stitches of the next needle with the previous needle before switching. This helps blend transitions more smoothly.
6. Not Reading the Pattern Properly
The Mistake
You get halfway through a project before realising you’ve been doing something completely wrong.
Why It Happens
We’ve all been guilty of skimming instructions too quickly and missing key details, leading to errors that require extensive frogging (ripping out stitches). Here's a video all about reading charts and patterns.
How to Fix It
- Read through the pattern before starting, highlighting abbreviations or sections that might be confusing.
- Look for stitch counts at the end of rows to check your progress.
- Use lifelines for complicated patterns so you can easily rip back to a safe point without losing your work.
7. Misjudging Yarn Substitutions
The Mistake
You swap out the recommended yarn for a different one, and suddenly the drape, stretch, or stitch definition looks off.
Why It Happens
Not all yarns behave the same! Some stretch more, some are denser, and fibre content makes a big difference. Our Ultimate Guide To Yarn Weights will help you here.
How to Fix It
- Use a yarn with a similar fibre content and weight.
- If the pattern calls for a wool blend, switching to cotton might completely change the fabric.
- Always check gauge and yardage before substituting.
Extra tip: For a step-by-step walkthrough, read our guide on how to substitute yarn in knitting patterns.
8. Not Blocking Your Finished Project
The Mistake
You cast off, weave in your ends and wear it straight away, and it looks a little lumpy. The stitches are uneven, the edges curl, lace looks crumpled and the fit isn’t quite what you expected.
Why It Happens
Fresh off the needles, knitted fabric still holds all the small variations in your tension. Blocking (wetting or steaming your piece and letting it dry in shape) relaxes the fibres so the stitches settle and even out. Skipping it is like skipping the last coat of paint.
How to Fix It
- Wet block wool and other animal fibres: soak the piece in lukewarm water with a little wool wash for 15-20 minutes, gently squeeze out the water (never wring), roll it in a towel to remove the excess, then lay it flat on a mat or towel, pat it into shape and leave it to dry completely.
- Pin anything that needs opening up: lace, shawls and edges that curl benefit from pins or blocking wires while they dry.
- Steam acrylics and some blends gently: hold the iron just above the fabric and let the steam do the work. Never press down, as heat can flatten acrylic permanently.
- Block your swatch too: it tells you how your fabric will behave after its first wash, before you’ve knitted a whole jumper.
Extra tip: Different fibres need different treatment. Our guide on how to block knitting covers techniques for every fibre.
9. Rushing Through the Cast-Off (and Ending Too Tight)
The Mistake
Your knitting is perfect right up to the last row, then the cast-off edge pinches in. The neckline won’t go over your head, the cuff digs in, or the edge of your shawl won’t stretch out when you block it.
Why It Happens
Most of us knit the cast-off row tighter than everything else, often because we’re rushing to finish. A standard cast-off also has less give than the knitted fabric below it, so even a slightly tight hand makes a big difference.
How to Fix It
- Go up a needle size or two for the cast-off row only. It’s the easiest fix and works for most projects.
- Use a stretchy bind-off where the edge needs to move: Jeny’s Surprisingly Stretchy Bind-Off is ideal for cuffs, necklines and toe-up socks, and a tubular bind-off gives ribbing a neat, elastic finish.
- Try the "k2tog tbl" bind-off for shawls: knit two together through the back loop, slip the new stitch back to the left needle and repeat. It gives a loose, flexible edge that blocks out beautifully.
- Check before you weave in: stretch the edge gently or try the piece on. If it’s too tight, undo just the cast-off row and work it again. It only takes a few minutes and saves a lot of frustration.
Final Thoughts
Mistakes are part of the knitting journey, and even the most experienced knitters have had their fair share of oops moments. The good news? Every mistake is a chance to learn! And with these fixes, you’ll be well on your way to smoother, more enjoyable knitting.
Happy knitting! 🧶