Is there any syndrome that is similar to Down syndrome?

Answer 1

Some symptoms include intellectual disability, hypothyroidism, and heart defects. Some characteristics of people with Down Syndrome are short stature, weak muscles, slanted eyes, a pushed-in nose bridge, and irregular mouths/tongues.

Answer 2

No, there is not. Down syndrome is unique in its characteristics and scientific identification.

2nd Answer:

Sort of . . . there are other 'mistakes' that occur for the same reason that Down syndrome occurs, and many of them are named. The thing is, though, that the body has such a high range of tolerance of all its hormones, enzymes, and so forth, that these other 'mistakes' never show up to be recognized.

Down syndrome, as per the first answer, is indeed unique in its characteristics.

Answer 3

pataus syndrome and klinefelters syndrome.