Is there any way to increase hand size, more meat, bigger hands?

Thank you for your question and photo.  The incision looks like it is healing well.  On the subject of suture removal, our office recommendation: No Kitchen Surgery.  Please contact your hand surgeon and ask what his/her protocol is.  Most surgeons want you to come back in for suture removal.  I...

I wouldn't recommend skin removal as the sensation at the tips of the fingers are very important for tactile sensation and scar never has as good of sensation as natural skin. You don't say how long ago your injury was, but if it has been less than a year, you likely still have...

Yes a toe to thumb may be the best option. Of course evaluation of his current function is a must. A large medical center with dedicated hand surgeons is the best place to go. Good Luck!

Your condition is not that uncommon and is called brachydactyly, Type D.  Short thumbs have numerous other names and even some superstitions associated with them.  Since there is no simple corrective surgery to change the appearance, realizing that your condition is not that uncommon...