absolutely not! Many women have scars on different parts of their bodies - their knees, their faces, their tummies, their butts, their breasts and having a scar does not make anyone ugly or unattractive.
12 years ago I had some surgical breast biopsies because it looked like I had breast cancer. The biopsies, thank goodness, were not cancerous but I have several big long scars on my breasts from it and I was very upset and thought men would think I was ugly.
After all the stitches came out, my boyfriend and we had dinner. He could tell I was upset and asked why so I told him how ugly I felt with these big scars. He asked if he could see them. I agreed but figured that once he saw them he would run out of the house screaming. Instead, when he saw them, he looked at them and then at me in the eyes. I started to cry and I asked him if he still liked me. He told me no - he didn't LIKE me - instead he LOVED me and he told me that every time that he or I saw those scars we should see them as a reminder of how lucky we were to find out that I didn't have cancer. A couple of days later he asked me to marry him.
11 years later I still consider myself the luckiest woman in the world to a husband who said that and stopped me from letting myself feel like damaged goods. "Ugly" is a feeling a woman imposes on herself, unfairly, because she thinks that beauty means she must be 1) perfect and look like she came out of a magazine and 2) skin deep. Neither is true. Hope this helps.