Knitted Mastectomy Prosthesis

Our local Knit Out In Public Day, hosted by the Burlington Public Library, Burlington, ON, Canada brought out many knitters and crocheters. Among them, was a lady who brought to our attention about the need and and want of knitted breast prosthesis. The item was very soft, naturally contoured and attractive. Colour co-ordinate with undergarments or natural.

The following is a site with info about obtaining them, Pattern for knitting them, the donation of them for free distribution to others who have the need. Hand knitters version.   (For machine knitters)

Knitted Knocker Pattern

1 set of 6″ double pointed size 4.5 mm . ( tight knitters are using size 5mm) Cascade Yarns Ultra Pima


Outer P

CO 3 sts-knit 6 rows I-cord –this will be knotted for nipple. Leave about 6” tail 3
Next row –kfb every stitch 6
Divide on 3 needles – start knitting in a round 6 (2 each needle)
Round 1 –kfb, k1 (each needle) 9 ( 3 each needle)


Next round-K to last st on each needle, m1, k1 12 ( 4 each needle)
A cup-repeat 18 times or amount to equal 5” across 66 (22 each needle)
B cup-repeat 20 times 51/2” diameter 72 (24 each needle)
C cup-repeat 24 times 6” diameter 84 (28 each needle)
D cup-repeat 26 times 61/2” diameter 90 (30 each needle)
E cup-repeat 28 times 7” diameter 96 (32 each needle)
P 2 rounds
Inner Piece
Round 1-K to last 2 sts, k2tog (each needle)
Round 2-ssk, k to last 2 sts, k2tog (each needle)
Repeat 2 rounds until 12 sts total (4 each needle)
Cut yarn (long tail) –thread tail through 12 sts. Do not tie off to allow for stuffing
Knot I-cord very tightly and stitch down for small nipple

Fill with soft high quality FiberFil used for pillows-we will stuff for you if you wantJ
While Knitted Knockers are a great “stash buster” taking only about 50 yards of yarn, we recommend Cascade Yarns’ Ultra Pima Yarn because it is 100% cotton; washable, soft and affordable. A skein of Ultra Pima sells for about $11 and will make up to 51/2 knockers and the Ultra Pima Fine sells for about $6 a skein and makes up to 3 knockers depending on the sizes you are making. If using Ultra Pima Fine, we recommend using a size 4 needle and making two sizes larger (meaning using a size D pattern you will end up with a size B knocker).
The most requested colors are the “nude” and pastel colors. If you don’t have enough of one color to finish a knocker feel free to finish the inner piece with a complimentary color using the same type of yarn. If you get bored with the flesh tones by all means make a creative, bright pair if you want. We do get requests for those tooJ. Don’t stress too much about the sizing. The most important thing is to make sure all pairs are the same size (same number of stitches). About 75% of the requests are for sizes B and C and the rest size A and D.
We realize this is not the easiest pattern being knit on double point needles but they are beautifully contoured and hold up really well. Getting past the first few rounds is the most challenging but once mastered it becomes easy, fun and a portable project taking most people about 2-3 hours to make one. If you do not want to knit the nipple just CO 3 sts and go to next row!
CO-Cast On m1-make a stitch
kfb-knit in front and back ssk-slip, slip, knit

Please mail your completed knocker to:

Knitted Knockers of Canada

115 Fiddlehead Cres.

Waterdown, Ontario L0R 2H8

Pattern courtesy of

More patterns such as the crochet pattern and magic loop pattern available for download at Knitted of the USA