Derek Hough thanks fans for prayers as wife Hayley Erbert undergoes skull surgery

After an emergency craniectomy, the "Dancing with the Stars" dancer now needs surgery to replace a portion of her cranium.

Hayley Erbert isn't out of the woods yet. Derek Hough updated his followers on Wednesday that his wife will be undergoing skull surgery as her medical treatment continues.

"I strongly believe all the prayers that have been sent with the intention and love of Hayley's recovery have helped so much. I can't thank you enough," the Dancing with the Stars judge wrote on his Instagram story in the early hours of Wednesday. "She is going in for surgery this morning to replace a large portion of her skull that was removed during her craniectomy. Please keep her in your prayers as I believe the collective energy helped her through these past few weeks."

This all began on Dec. 6, when Hough and Erbert were in Washington, D.C. for the latest stop on their Symphony of Dance concert tour. Following the performance, Erbert became disoriented and was hospitalized. She was diagnosed with an intracranial hematoma (a collection of blood in the skull) stemming from a burst blood vessel. Treatment required an emergency craniectomy, a procedure that removes a portion of the skull to relieve pressure on the brain.

That procedure was successful, with Hough previously describing Erbert's recovery as "nothing short of a miracle." Now, surgery is required to replace the part of the skull that had to be removed.

Fans can rest assured that Hough will likely keep providing updates on his wife's recovery, which he has previously said will be a "long road." In the meantime, keep those prayers coming.

Hough and Erbert married back in August after eight years of dating that started when they met on DWTS and So You Think You Can Dance. In a previous Instagram post, Hough noted that "while this isn’t the holiday season either of us envisioned, it’s one that we’re incredibly grateful to have. We look forward to cherishing these moments with a deeper appreciation for life and the people in it."

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