is this normal on a Bok Choy

[marcom]

I started seeing this to my young bok choy I am not sure if it's disease or not

[peanut]

Bok Choy is a member of the Brassica family and those look like Cabbage White eggs to me. You need to squish them off, check every leaf on every plant for more and then cover the lot with butterfly netting or insect mesh.
Have fun!

[Mr Bones]

On my phone so can't see properly but it looks like flea beetle attack. If it is, keep them well watered to keep the beetle numbers down and the plants growing fast.

[marcom]

I sprayed them with a bit of pesticide as well now, hopefully will keep them at bay long enough for it to grow bigger

[ameno]

That's definitely flea beetle damage.
They are very unlikely to kill the plant, but they will pepper the leaves with tiny holes, making them not very appetising.

[Snoop Puss]

Flea beetles are a menace. I use a powder containing pyrethrin that I can buy at our local farmers co-op. Not sure if that's permitted in the UK.

This is quite useful on controlling them https://www.almanac.com/pest/flea-beetles

The Wikipedia page on pyrethrum has some interesting information on potential companion plants susceptible to flea beetle attack. https://en.wikipedia.org/wiki/Pyrethrum#Toxicity