Ryan Reynolds is under fire for a photo showing him carrying his baby daughter incorrectly. Source: Supplied

Celebrating Father’s Day in the US earlier this week, his wife Blake Lively posted a pic to Instagram of Ryan holding their five-month-old daughter, James, in a baby carrier.

But, as it was soon pointed out by her followers, the 38-year-old actor apparently wasn’t wearing the carrier correctly, and an online furore soon erupted.

The snap was flooded with comments from people pointing out that the bub’s feet are dangling out of the bottom and her head is obscured.

“WTF IS WRONG WITH YOU PPL ALL THE MONEY IN THE WORLD AND YOU CAN’T EVEN CARRY YOUR BABY SAFELY. Jesus Christ!!!” one person commented.

“If you’re going to post a photo of you #babywearing at least do it right. All I’m imagining is the baby falling straight to the ground. This is scary!” another wrote.

While the snap received more than 335,000 likes, many of the 6000-plus comments blasted Ryan and suggested he read the instructions.

So how should he have positioned baby James in the carrier?

Babywearing Institute president Beate Frome told Yahoo Parenting the baby’s legs should not have been hanging below the carrier because it is “totally against the way this carrier is designed”.

“Her legs should be spread apart 90 degrees and 100 degrees up,” she said.

“Having the legs together is essentially like having baby on a cradle board, which can lead to hip dysplasia. In a straight-leg position like this, the hip is essentially pushed out of the socket.”

She added that the bub’s head should have been higher on his chest — close enough for him to touch her head with his lips.

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