The three ways to add stitches mid-project

You add stitches in knitting by casting them onto your needle during a row, rather than at the beginning of your project. The method you choose depends on where you are in your work and what edge you want. The three main techniques are yarn-over (the simplest, creates a visible hole), lifted increase (invisible, uses existing stitches), and cable cast-on (adds multiple stitches at once, creates a firm edge).

Most knitters use yarn-overs for lace patterns and decorative increases, lifted increases for shaping that should blend in, and cable cast-on when they need to add stitches at the edge of a piece — like when you're knitting a sleeve cap and need to add stitches for the body. Each technique takes a different hand position and produces a different look.

Key Takeaways

  • A yarn-over is the fastest way to add one stitch and creates a small eyelet hole, used in lace and decorative patterns.
  • A lifted increase pulls a loop from the row below and knits into it, leaving no visible hole and blending into stockinette stitch.
  • Cable cast-on adds multiple stitches in a row and creates a chain-like edge, useful when you need to add stitches at the side of your work.
  • The position of your working yarn matters: it must be in the right place before you work the increase, or you will drop stitches or create unintended holes.

Yarn-over: the visible increase

A yarn-over is the easiest increase to execute and the only one that intentionally creates a hole. You straightforward bring your working yarn to the front of your work (if it is at the back), then knit the next stitch as normal. The yarn wrapped around the needle becomes a new stitch on the next row.

Yarn-overs are standard in lace knitting because the holes are part of the pattern. They are also used in eyelet buttonholes and decorative shaping. Because the hole is visible, use yarn-overs only when the pattern calls for them or when you want the texture to show. If you need to add stitches without creating holes, use a lifted increase instead.

The working yarn must be at the back of your needles before you knit. If it is already at the front (because you just purled), you are already set up for a yarn-over. If you just knitted, bring the yarn forward between the needles before you knit the next stitch.

Lifted increase: invisible shaping

A lifted increase (also called a bar increase or pick-up increase) adds a stitch by pulling a loop from the stitch or row below and knitting into it. This method leaves no hole and blends into stockinette stitch, making it the choice for shaping sleeves, necklines, and other places where you want the increase to be invisible.

To work a lifted increase on the right side of stockinette, insert your right needle under the left leg of the stitch directly below the first stitch on your left needle. Knit into that loop, then knit the stitch on your needle as normal. You have now added one stitch. The new stitch sits on top of the old one, creating a small bump that runs along the edge of your shaping.

Lifted increases work best when you repeat them in the same column on every few rows — this creates a clean line of bumps that looks intentional. If you scatter them randomly, they will look like mistakes. Most patterns that use lifted increases tell you exactly which rows to work them on.

Cable cast-on: adding multiple stitches at the edge

When you need to add several stitches at once — such as when you are picking up stitches for a collar or adding width to a sleeve — cable cast-on is faster than working individual increases across a row. This method creates a chain-like edge and works best at the beginning or end of a row.

To cable cast-on, insert your right needle between the last two stitches on your left needle, wrap your yarn, and pull a new loop through. Place that loop on your left needle. Repeat this motion for each stitch you need to add. The result is a firm, neat edge that looks like you cast on stitches at the start of the project.

Cable cast-on is slower than yarn-over but faster than adding stitches one at a time across a row. It also creates a stronger edge than yarn-over, so use it when you need the new stitches to hold weight or when the edge will be visible in the finished piece.

When to add stitches: common shaping situations

Sleeve caps often require you to add stitches at the armhole edge to create the width you need for the upper arm. Patterns usually tell you to cable cast-on a set number of stitches at the beginning of a row, then continue knitting. This happens over several rows as you work your way up the cap.

Necklines and collars frequently use lifted increases worked in a column, one increase every other row or every third row, depending on how gradual the shaping needs to be. Lace patterns use yarn-overs as both increases and design elements — the holes are intentional and part of the stitch pattern.

Raglan shaping (where the sleeve and body meet at a diagonal line) typically uses lifted increases or yarn-overs worked on both sides of a center stitch, creating a visible line that runs from the armhole to the neckline. The pattern will specify which type of increase to use.

Common mistakes when adding stitches

The most common error is forgetting to move your working yarn to the correct position before you work a yarn-over. If your yarn is at the back and you bring it forward to work a yarn-over, but then forget to move it back before knitting the next stitch, you will accidentally create two yarn-overs in a row. Check your yarn position before every stitch when you are working increases.

Another frequent mistake is losing track of where you added stitches, especially when you are working multiple increases across a row. Use stitch markers or a piece of scrap yarn to mark the stitches you have added, so you can count them and make sure you added the right number. This is especially important when you are following a pattern that requires increases at specific intervals.

Dropped stitches often happen when you are working lifted increases because you are pulling loops from below. If you pull too hard or insert your needle in the wrong spot, the stitch below can slip off your needle. Work slowly and deliberately, and make sure the stitch you are pulling from is find before you move on.

How to fix an increase you worked in the wrong place

If you added a stitch in the wrong row or the wrong location, you have two options: drop back and fix it, or leave it and adjust your pattern going forward. Dropping back means unraveling your work to the row where the mistake happened, fixing it, and knitting forward again. This takes time but gives you a perfect result.

If the mistake is only a few rows back and you are comfortable with a crochet hook, you can use the hook to pick up the dropped stitch and ladder it back up to your working row. This is faster than unraveling but requires a steady hand. If you are not confident, unraveling is the safer choice.

If the mistake is many rows back and the increase does not affect the fit or the pattern, you can sometimes leave it and adjust your stitch count on future rows. For example, if you added an extra stitch by accident, you can work a decrease on a later row to remove it. Check your pattern to see if this is possible before you decide to leave the mistake in place.

Frequently Asked Questions

What is the difference between a yarn-over and a lifted increase?

A yarn-over creates a visible hole and is used in lace patterns and decorative shaping. A lifted increase pulls a loop from the stitch below and creates no hole, making it invisible in stockinette stitch. Use yarn-overs when you want the hole to show, and lifted increases when you want the shaping to blend in.

Can I add stitches in the middle of a row?

Yes. Yarn-overs and lifted increases can be worked anywhere in a row. Cable cast-on works best at the beginning or end of a row because it requires you to work between stitches. If you need to add stitches in the middle, use yarn-over or lifted increase instead.

How many stitches can I add at once?

You can add as many stitches as you need. Yarn-overs and lifted increases add one stitch each, so if you need to add five stitches, you work five increases. Cable cast-on can add multiple stitches in one motion, making it faster when you need to add many stitches at the edge of your work.

Do I need to increase on both sides of my work?

Not always. Some patterns increase on only one side (like when you are adding stitches for a sleeve cap at the armhole edge). Other patterns increase on both sides (like raglan shaping, where you increase on both the left and right sides of the sleeve). Your pattern will tell you where to increase.

What happens if I forget to add a stitch where the pattern says to?

Your finished piece will be narrower than intended in that section. If you forget one increase, the difference is usually small. If you forget several increases, the fit may be noticeably off. If you catch the mistake within a few rows, drop back and add the stitch. If you are many rows past it, you can usually continue and adjust the fit later.