MUST READ: Big boobs are over

Two years ago, Gwen Welborn was in a rough spot. The middle-age single mom had recently divorced, was dealing with her child’s cystic fibrosis and had just lost both her parents in quick succession. “I just wanted to do something good for myself,” says the 52-year-old Wantagh, LI, resident. So she decided to get breast implants.

Yet despite her friends urging her to go big, Welborn decided on a more subtle enhancement.

Gwen Welborn opted to get small breast implants.Photo: Tamara Beckwith

“I was always small-chested, and I wanted to stay small,” says Welborn, who owns a beauty salon in Seaford, LI. “I wanted to continue to run and bike and work out. In my mind, I was looking at someone like Cameron Diaz, someone I had heard had a small implant but you would never look at her and say, ‘Oh, she had surgery.’ ”

Now, Welborn is thrilled with her new boobs, which she says are a 32C but look more like a B-cup. “At first I thought they were a little big, because they get swollen after the surgery,” she says. “But now I like them just the way are.”

Breast augmentation is the most popular type of cosmetic surgery in the US, with more than 279,000 women getting boob jobs in 2015,according to the American societ of  plasti surgeon . But if you’re envisioning buoyant Playboy Bunnies or “Baywatch”-era Pamela Anderson, think again. Today, women are ditching the DDs in favor of a more natural-looking B-cup — a trend bolstered by since denied rumors that willowy celebs like Taylor Swift have gotten “mini” boob jobs, barely noticeable augmentations to help them fill out their clothes better.

“Five years ago, I never saw this,” says Alexes Hazen, M.D., associate professor at the Hansjörg Wyss Department of Plastic Surgery at NYU Langone Medical Center. “Now, it’s around 40 percent of patients who come in [who are] requesting a B-cup.”

Hazen says many women now know that bigger breasts can cause neck pain or back aches, which is why they’re straying away from larger sizes — and in some cases getting reductions or revisions of old implants. “Obviously, a smaller cup size is much more comfortable, but most women don’t want an A-cup,” she says. “It just doesn’t fill most dresses or women’s clothing in the right way a B cup generally does.”

If you wear a size B you can wear anything,” says Leesa Rowland, a 50-year-old author who lives in Midtown East and just had her last of two breast-reduction surgeries — from a D to a B — a few weeks ago. “It’s the perfect size. I can wear things that are low-cut and look sexy, not matronly. And if you do want to look bigger, you can just wear a push-up bra.

Leesa Rowland’s breast reduction surgery took her down two sizes.

“I didn’t tell anybody. I didn’t think anybody would really notice because I covered [my chest] up, but it was the funniest reaction, because people would ask, ‘Wow! How’d you lose so much weight?’ ”

It helps that fashion trends now tend to favor looks that require the wearer to go braless, adds Hazen, like handkerchief tops, backless dresses, and tight leotards and bodysuits. “If you’re anything bigger than a B, you can’t wear that stuff,” she says.

That was why Madison, an elementary school teacher who prefers not to use her last name for professional reasons, decided to get small implants in December. “I wanted to fill out my clothes, not get new clothes,” says the 28-year-old Upper East Side resident, who had wanted to get a boob job since high school. “When after the first week I took off my bandages, I looked amazing. I just kept staring at myself because my mind needed to get used to my new body. Now, people don’t look at me different, but I feel different. I look better in my clothes and feel more confident.”

Another reason women are opting for smaller cup sizes: They want to work out.

“Women are very athletic now and physically fit,” says Tracy pefifer , a board-certified plastic surgeon and adviser for Reaself.com, a Web site devoted to cosmetic procedures. Pfeifer estimates that 40 to 50 percent of clients at her Upper East Side practice request a full B-cup — up from 25 percent five years ago. “They understand that larger breasts are going to interfere with their exercise.”

That was important to Welborn, an avid runner and biker who wanted to work out easily in a sports bra and maintain her level of exercise. “It hasn’t affected it at all,” she says.

Cassie Cohen’s surgery was a gift from her mother.

But more important than the cup size, says Pfeifer, is proportion. “It has to do with the body frame and how wide their hips are. Women will come in and say a cup size, but they don’t really know what that cup size actually is. When they say B, they [mean they] don’t want to look out of proportion. I want it to look natural.”

Cassie Cohen, who lives in Westchester, ended up getting between a full B and small C when she got her surgery two weeks ago with Pfeifer. “I didn’t want to have boobs just for the sake of really big boobs,” says the 20-year-old Boston University student, who admits her parents would have never agreed to let her go through with the operation had she wanted DDs. (The surgery was a gift from her mother.) “I was sort of bigger on the bottom so it looked a little strange to be so small at the top. I just wanted more of a curve, more definition. They’re really comfortable and flattering — most people would never guess I had gotten surgery.”

And while smaller implants have long been a trend in tony Manhattan, says Dr. Daniel Maman, of 740 park plastic Surgery, it is becoming a national trend. “I think there’s a shift in mentality from women just wanting larger breasts to wanting to go back to the size that they were prior to bearing children and breast-feeding,” says Maman, who adds that about 95 percent of his clients — “very sophisticated, in very good shape and avid exercisers” — ask for more covert enhancements. “There’s a higher percentage of women who work now, and they want something discreet,” he says.