Thank you for the photo. Without seeing a before photo or knowing the exact areas grafted, it is impossible to tell what kind of growth you are having. Plus, 4 months is still very early after a hair transplant. It can take up to a year or more for all of your hair to start growing after a hair transplant. Hang in there!
It can take six to twelve month after a hair transplant surgery to see results. So at four months, it may be too early to judge
At 4 months, you should not expect real growth. That starts usually at 5 months and 80% will be evident at 8 months. Be patient.
It's too early to evaluate your result. You must wait at least 10 to 12 months to visualize the final aspect. Contact your surgeon to follow-up. Have in mind that you have an advanced degree of baldness and you'll probably need another Surgery in the future.
Usually the transplanted hair shaft falls off and the follicles go through its intrinsic cycle of growth. At four months you are likely to get bout 20 percent growth. It may take up to 18 months for all the hair to grow in.
It is impossible to evaluate a result without a before photo. At only 4 moths this is very early, there may be much more to come. Follow up with your doctor is advised. The sweet spot of growth is 4-8 months, hopefully this will bring the growth you are desiring. Good luck!
It takes about 9-12 months for a hair transplant to grow in. You'll need to wait another 8 months to determine if your transplant was a success or not. But if you're worried, be sure to contact your surgeon so that your progress can be evaluated.