This can also be caused by a shoe(s) that are too tight and have been putting pressure on the big toe and that will also cause your toe to callous and get a yellowish color and be thickened skin at the same area. It can take upwards of a year to correct this by wearing loose fitting shoes that allow your foot to expand and contract as they will during the day from swelling and standing all day or even off and on the feet activities. It can also be part of peripheral neuropathy brought on by diabetes. If you have diabetes it is extremely important to get it checked as you can lose your toe to diabetes complications. A toenail that is ingrown will also put pressure on the toe and can cause numbness. There are other things that can cause this including a bunion. You should definitely get it checked by an M.D. To see what they think and then if they feel it needs to be addressed by someone more knowledgeble in the field of pediatry then they will more than likely give you a referral. If you are really worried and they do not give a referral then ask. Also get referrals from your insurance provider and your local hospital. Good luck.
Yes, I realise this post is old, but I happened upon it and maybe the info can be of use to someone else who, also, happens upon it for and answer.
Yes, I realise this post is old, but I happened upon it and maybe the info can be of use to someone else who, also, happens upon it for and answer.