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Working in rows · Beginner

Back loop and front loop

Back loop only (BLO) means working a stitch under one strand of the two at its top: the back loop, the strand farther from you. Front loop only (FLO) uses the strand nearer to you. The strand left free shows as a ridge on the fabric. The usual way is under both loops, so a pattern says when it wants one only.

How to work it

  1. Find the two loops

    You are part way along a row, with one loop on the hook. Find the next stitch of the row below, the first one you have not yet worked into, and look down on its top. The top is two strands that lie side by side like a V. The strand nearer to you is the front loop. The strand farther from you is the back loop.

  2. Back loop only: hook in

    The hook passes under one strand only of the two at the top of the next stitch: the back loop, the strand farther from you. The front loop, the strand nearer to you, lies under the hook and is left free.

    For back loop only, push the hook in between the two strands and under the back loop alone, from the side that faces you through to the back. The front loop is not on the hook: it stays in front of the hook, free. The loop you started with is still the only loop on the hook.

  3. Finish the stitch

    Finish the stitch as usual. For a single crochet (UK double crochet): at the back of the work, take the yarn that leads to the ball over the hook from back to front (up behind the hook and over its top toward you), and draw it back under the back loop, to the side that faces you (two loops on the hook); then take the yarn over again and draw it through both loops. One loop is on the hook, and the front loop of the stitch below is left free.

  4. Front loop only: hook in

    The hook passes under one strand only of the two at the top of the next stitch: the front loop, the strand nearer to you. The head of the hook comes up between the two strands, and the back loop is left free.

    For front loop only, go to the next stitch of the row below. Push the hook under its front loop alone, from the side that faces you: the head of the hook comes up between the two strands, in front of the back loop. The back loop is not on the hook. The loop you started with is still the only loop on the hook.

  5. Finish the stitch

    Finish the stitch in the same way as before: take the yarn over the hook, the same way, and draw it back under the front loop, to the side that faces you (two loops on the hook); then take the yarn over again and draw it through both loops. One loop is on the hook, and this time the back loop of the stitch below is left free.

At a glance

Also called
back loop only, front loop only, BLO, FLO
Used for
a ridge across the fabric, as a pattern asks for it; ribbed fabric, made of rows worked in the back loop only; the invisible decrease, which is worked through front loops
Abbreviations
BLO or BL for back loop only, FLO or FL for front loop only
Front loop
The strand at the top of the stitch that is nearer to you
Back loop
The strand at the top of the stitch that is farther from you
Unless the pattern says
Work under both loops.
The ridge
Working under the back loop only leaves a ridge on the side of the work that faces you as you make the stitch. Working under the front loop only leaves it on the other side.
Third loop
In half double crochet (UK half treble): a strand just under the two top loops, left by the yarn over that begins the stitch.

Front and back are named from where you sit, not from the two sides of the finished piece. The front loop is whichever strand is nearer to you while you make the stitch. When the work is turned at the end of a row, the strand that was the front loop of a stitch becomes its back loop.

Nothing else about the stitch changes. The yarn overs and the pulls are the same as when the hook goes under both loops; only the place the hook goes in is different.

The strand that is left free stays on the surface of the fabric. Along a whole row, those free strands lie end to end and make a line, which is the ridge.

Rows worked in the back loop only, one after another, make a ribbed fabric.

Half double crochet has a third loop as well. The yarn over at the start of the stitch leaves a horizontal strand just under the two top loops. In work that goes round and round without turning, it lies behind the back loop; in turned rows it faces you, below the front loop. A pattern that says "third loop" means this strand and not the back loop. A stitch worked into it pushes the V at the top of the old stitch forward onto the face of the fabric, which is how camel stitch is made.

Tips

  • To find the third loop of a half double crochet in the round, tip the top edge of the work toward you and look just behind the two top loops.

When it goes wrong

I cannot tell which loop is which.
Hold the work as you do to crochet, and look down on the top of the stitch. Of the two strands, the one nearer to you is the front loop and the one farther from you is the back loop.
My fabric has ridges that the pattern does not show.
The hook has been going under one loop only. Unless the pattern says otherwise, it goes under both loops at the top of the stitch.

Left-handed

The pictures show the hook held in the right hand. For the left hand, read each picture as its mirror image.

Questions

What does BLO mean in a crochet pattern?
Back loop only. The stitch is worked under the back loop alone: the strand at the top of the stitch that is farther from you.
What does FLO mean in a crochet pattern?
Front loop only. The stitch is worked under the front loop alone: the strand at the top of the stitch that is nearer to you.
Which loops do I use when the pattern does not say?
Both. The hook goes under both loops unless the pattern asks for one.
Does back loop only look different from front loop only?
Yes. The loop left free makes a ridge. Back loop only leaves the ridge on the side that faces you as you work, and front loop only leaves it on the other side.
What is the third loop in crochet?
A strand that a half double crochet has beside its two top loops. It lies just under them and is left by the yarn over that begins the stitch. It is not the back loop.