Trouble Breathing and Nasal Voice After Rhinoplasty, Is This Normal?

It's very common to have a congested voice after rhinoplasty due to the postoperative swelling on the internal nasal linings. This can lead to a nasally voice. If you had an endotracheal tube placed between your vocal cords during your surgery you may have some hoarseness from this, though it is not normal for this symptom to last 5 weeks.

If your voice sounds weak/strained you should probably be examined by an otolaryngologist (ear, nose, throat specialist) to examine you further.

1 month after rhinoplasty, you will likely still have significant swelling both externally and internally.  You may still have some congestion which would lead to the nasal voice.  If you had general anesthesia, this may be a residual effect of the endotracheal tube on your vocal cords though too.  Rhinoplasty should not however significantly cause issues with your voice.   Seek your surgeon for follow up.