Lena Dunham has taken to social media to share a series of nude photos, celebrating the nine-month anniversary of undergoing a hysterectomy.

The actress, who had her uterus and cervix removed earlier this year due to endometriosis posted three naked photos on Instagram, giving thanks "for this body, which is stronger than I've ever given it credit for".

"Today is National Leathercraft Day, National Relaxation Day and National Lemon Merengue Pie Day," she wrote.

"It's also the 9 month anniversary of my hysterectomy. I've never celebrated the 9 month anniversary of anything and I realised last night why that number feels so funny – I won't ever do it the way I planned to."

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"My body is mostly healed and every day I find a new bruise on my heart, but today I offer myself gratitude: from the most pained place, I somehow knew to choose myself. The purest glint of who we are and know we can be is always available to us, calm and true at our centre.":

"My friend Paul named my uterus Judy, and when she was being uppity we called her out, hence the tattoo on my ribs, which hurt like f... even through the pain meds: #RIPJudy. Today I give thanks for Judy, for her graceful exit and for this body, which is stronger than I've ever given it credit for."

The former Girls star had the surgery after suffering with endometriosis for almost two decades.

"This body is stronger than I’ve ever given it credit for," she wrote.

The medical condition causes intense pain as the uterine lining tissue grows outside the uterus.

Dunham went public with her endometriosis diagnosis in her Lenny Letter online forum three years ago, and in Feburary revealed details about her surgery in an essay for Vogue.

When she awoke from the surgery, Dunham said she was told her inner organs were in a worse condition than she had imagined.

"In addition to endometrial disease, an odd hump-like protrusion and a septum running down the middle, I have retrograde bleeding, a.k.a. my period running in reverse so that my stomach is full of blood. My ovary has settled in on the muscles around the sacral nerves in my back that allow us to walk. Let's please not even talk about my uterine lining," she wrote in her essay.

"The only beautiful detail is that the organ – which is meant to be shaped like a light bulb - was shaped like a heart."

At the time, Dunham admitted she made the decision to undergo a hysterectomy after "years of complex surgeries measuring in the double digits". She had also been attempting to treat endometriosis with alternative healing methods, such as "pelvic floor therapy, massage therapy, pain therapy, colour therapy, acupuncture".

Lena Dunham wears a reproductive system jersey to a Planned Parenthood event.

Although the star no longer has the same reproductive makeup, she is determined to have kids and said she is now exploring her options, biologically or otherwise, for making that happen.

"I may have felt choiceless before, but I know I have choices now," she added. "Soon I'll start exploring whether my ovaries, which remain some place inside me in that vast cavern of organs and scar tissue, have eggs. Adoption is a thrilling truth I'll pursue with all my might."