die Naht
seam
The line where two pieces of fabric, leather, or similar material are joined together by sewing.
Die Naht an meiner Jacke ist aufgegangen.
The seam on my jacket has come undone.

seam
Loading your saved state.
seam
The line where two pieces of fabric, leather, or similar material are joined together by sewing.
Die Naht an meiner Jacke ist aufgegangen.
The seam on my jacket has come undone.

The noun 'die Naht' (the seam) is closely related to the verb 'nähen' (to sew). A seam is the result of sewing.
Kannst du mir helfen, diese Naht zu nähen?
Can you help me sew this seam?
The idiom 'aus allen Nähten platzen' (to be bursting at the seams) is fixed and used figuratively. It describes that a place, a piece of clothing, or even a schedule is overfilled.
Der Bus war so voll, er platzte aus allen Nähten.
The bus was so full it was bursting at the seams.
Common verbs connected with a fabric seam are 'aufgehen' (to come undone), 'reißen' (to tear), or 'platzen' (to burst) when it breaks. A new seam is 'gemacht' (made) or 'gesetzt' (placed/put in).
Die Naht am Ärmel ist leider gerissen.
The seam on the sleeve has unfortunately torn.
You can recognize the medical meaning from words such as 'Arzt' (doctor), 'Operation' (operation/surgery), 'Wunde' (wound), or 'Fäden ziehen' (to remove stitches). Here 'Naht' (suture) is often used as a synonym for the stitched wound.
Nach der Operation hatte ich eine lange Naht am Knie.
After the operation, I had a long suture on my knee.
sting / stitch
'der Stich' and 'die Naht' both belong to sewing. A stitch is a single movement or way of sewing with a needle and thread. A seam is the line created by many stitches, joining two pieces of fabric. Learners may confuse the words because both occur in sewing. In practical terms, you can say: many stitches form a seam.

Die Naht an meiner Jacke ist aufgegangen, deshalb bringe ich sie zur Änderungsschneiderei.
The seam on my jacket has come undone, so I’m taking it to the alterations tailor.
Bei diesem Muster muss jeder Stich sehr gleichmäßig sein.
With this pattern, every stitch has to be very even.