4 months post hair transplant - growth slightly uneven, is this normal?

It is normal for the initial growth to appear patchy. This is because each follicle cycles at a different pace. You should start seeing some degree of uniformity at about the 6-7 month.

While it is possible that grafts in one area may not be as successful as those in another area, the most common reason for uneven growth in the first 6-9 months after hair transplant is that not enough time has passed. As the hairs mature over the first 12 months, the final result will become visible. At 4 months, much of the hair growth is not even visible yet, and can only begin to be assessed during the 6-9 month time frame. Patience with hair transplant is key. As always, any specific concerns after a procedure should first be discussed with the doctor who performed the procedure.All the best,

It can take 6 to 12 months after surgery to see results.  If you are concerned it is best to contact your doctor