How to Crochet Kidney (Free Pattern For Beginners)

This Crochet Kidney Pattern offers a unique and educational project, designed with an emphasis on realism, from the overall shape down to the size variations of its veins. This crocheted organ will be perfect for biology class demonstrations or as a piece of pharmacy decor.

Whether you are a beginner or an expert, the designer has created it suitable for everybody. So by following this pattern, create a realistic kidney model that not only aids in learning but also serves as a conversation starter. Its practical application in educational contexts and as decorative art highlights the versatility and creative potential of crochet crafts.

crochet real kidney amigurumi

Pattern and design by @leapdoublecrochet 

Supply Recommendations

Choosing the supplies that the designer recommended will allow you to crochet this amigurumi kidney in the same size and look. Following are the materials and tools you will need:

  • Red Heart Super Saver Yarn, Claret or Burgundy, 7oz (198g), Medium, Acrylic
  • Red Heart Super Saver Yarn, Blue, 7oz (1989), Medium, Acrylic
  • Red Heart Super Saver Yarn, Hot Red, 7oz (198g), Medium, Acrylic
  • Red Heart Super Saver Yarn, Aran, 7oz (198g), Medium, Acrylic
  • Size G crochet hook (4.00 mm)
  • Sewing needle & stitch marker.
  • Polyester Fiberfill


These crochet abbreviations have been used to make up the pattern. Make sure you know the meanings for each by reading the below list:

  • st/sts-stitch/stitches
  • sc single crochet
  • inc (increase) 2 sc in the next stitch
  • sc 3 in next st single crochet 3 into the next stitch
  • dec (decrease) sc 2 stitches together
  • sc 3 together single crochet the next 3 stitches together
  • sl join with slip stitch to form a ring

Crochet Real Kidney Amigurumi

The Crochet Kidney Amigurum is a great stop for the same playable amigurumi and trying something educational for kids. This charming crocheted kidney, with its detailed representation of the renal arteries and veins, is an excellent tool for educational purposes, such as teaching anatomy in biology classes. Its compact size and soft texture also make it a quirky and thoughtful gift for medical professionals or as a unique decorative item for medical spaces. While the pattern may appear complex due to the attention to detail required, it can be tackled by those with an intermediate level of crochet skills who are up for a rewarding challenge. Now, let’s get started with this interesting pattern.

Kidney Pattern

  • crocheting the kidneyIn Claret/Burgundy, chain 9
  • Round 1: Turn, inc, sc 6, inc, turn, inc, sc 6, inc, place stitch marker (20)
  • Round 2: inc twice, sc 6, inc 4 times, sc 6, inc twice (28)
  • Round 3: 3 sc in next st, sc 13, 3 sc in next st, sc 13 (32)
  • Round 4: inc, sc, inc, sc 13, inc, sc, inc, sc 13 (36)
  • Round 5: sc 2, 3 sc in next st, sc 17, 3 sc in next st, sc 15 (40)
  • Round 6: sc 3, inc, sc, inc, sc 17, inc, sc, inc, sc 14 (44)
  • Round 7: sc 5, 3 sc in next st, sc 21, sc 3 in next st, sc 16 (48)
  • Round 8: sc 5, inc, sc, inc, sc 21, inc, sc, inc, sc 16 (52)
  • Round 9: sc 7, inc, sc 25, inc, sc 18 (54)
  • Rounds 10-14: sc around (54)
  • Round 15: sc 20, chain 5, skip 32 sts, sc 2, place st marker (27)
  • Round 16: sc around (27)
  • Round 17: (sc 7, dec) x3 (24)
  • Round 18: (sc 6, dec) x3 (21)
  • Round 19: (sc 5, dec) x3 (18)
  • Round 20: (sc 4, dec) x3 (15)
  • Round 21: dec 7 times
  • Fasten off & sew sts closed.
  • Round 1: In the 6th st from first “hump,” start sc 22, chain 5, sc in first st & place st
    marker (27)
  • Round 2: sc around (27)
  • Round 3: (sc 7, dec) x3 (24)
  • Round 4: (sc 6, dec) x3 (21)
  • Round 5: (sc 5, dec) x3 (18)
  • Round 6: (sc 4, dec) x3 (15)
  • Round 7: dec 7 times
  • Fasten off & sew in ends.
  • Stuff thoroughly.
  • Round 1: Start in corner, sc 5, sc 5 along chain, sc 5, sc 5 along chain, place st
    marker (20)
  • Rounds 2-3: sc around (20)
  • Round 4: sc 6, sc 3 sts together, sc 7, sc 3 sts together, sc 1 (16)
  • Fasten off, but don’t sew in end.

Fun Fact: The renal artery is slightly larger than the renal vein!

crochet veins and assemble everything
Renal Artery:
In Hot Red, chain 6, sl join Rounds 1-9: sc around (6) Fasten off & sew in ends.
Renal Vein:
In blue, chain 5, sl join Rounds 1-9: sc around (5) Fasten off & sew in ends.
In aran, chain 7, sl join Rounds 1-18: sc around (7) Fasten off & sew in ends.

Sew the renal artery, renal vein, and ureter in the same order as shown above.
Place the artery/vein/ureter complex inside the middle opening.
Use the spare yarn end from the kidney to weave through the rim of the middle>
Once you have weaved all the way around, tighten and secure with a knot.
Ta-da! You now have your very own life-size kidney!

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