My areola incision is still open. Is that normal? Almost 4 weeks. (Photo)

 I would suggest you are seen by your plastic surgeon asap. You may need to have the incision repaired and I would have the area checked for infection as well. Best of luck.

Not uncommon for circumferential incisions to open with combined implants placed at the same setting. See your surgeon as soon as possible. 

Open wounds after breast surgery are never normal.  In your case, you may have an infection or some other reason for you wound to have opened up and I recommend an immediate call and visit to your surgeon.Best of luck, Dr. L

Way too much tension, as evidence by your early spreading nipple. It looks like you've got some fat necrosis (death) along the line of closure. You will need to be followed up closely to ensure the implant does not get exposed with this.

Your skin might be having a reaction to the suture. It does not look like an infection, but still check with your doctor. A reaction to the suture is not uncommon and will heal normally after a year.