People.com Lifestyle Health Lauren Burnham Hospitalized for Postpartum Complications: 'Getting Worse,' Says Arie Luyendyk Jr. Arie Luyendyk Jr. revealed Thursday night on Instagram that wife Lauren Burnham Luyendyk is battling a severe case of mastitis that has required hospitalization By Jen Juneau Jen Juneau Twitter Jen Juneau is a digital news writer for PEOPLE. A '90s teen and horror film connoisseur, she started at the brand in 2016, after a decade of working as a technical writer and then moonlighting as a journalist beginning in 2013. Originally from New Orleans, Jen grew up both in NOLA and Florida and eventually attended the University of Central Florida in Orlando (still her home base!), where she earned a bachelor's in English/technical communication, with a minor in magazine journalism. People Editorial Guidelines Published on July 23, 2021 09:28 AM Share Tweet Pin Email Lauren Burnham Luyendyk is battling a severe case of mastitis. The former Bachelor contestant, 29, was hospitalized and given antibiotics on Thursday night but was still "getting worse," husband Arie Luyendyk Jr. shared on his Instagram Story. In the photos and videos, a masked Lauren (who welcomed twins Senna James and Lux Jacob with Arie, 39, on June 11) is shown lying in a hospital bed. Her husband then zoomed in on her "wild" X-ray and vials of "so. much. blood" that had been taken from her. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human-interest stories. Arie Luyendyk Jr.'s Instagram Story. Arie Luyendyk Jr./Instagram Arie Luyendyk Jr. and Wife Lauren Burnham Share First Photos of Twins: "Never Been Prouder" According to Mayo Clinic, "Mastitis is an inflammation of breast tissue that sometimes involves an infection." It can be caused by blocked milk ducts and bacteria entering the breast. If not treated early enough, mastitis "can cause a collection of pus (abscess) to develop in your breast," which "usually requires surgical drainage." Arie Luyendyk Jr.'s Instagram Story. Arie Luyendyk Jr./Instagram "Hate this for her," Arie wrote of his wife on his first post, adding later, "She'll be here overnight. IV antibiotics and scans for any abscess" He concluded, "She's been through a lot this week." RELATED VIDEO: Kenya Moore Introduces Daughter for First Time After "Scary" Pregnancy Crisis Both Lux and Senna have joined the family — which also includes Arie and Lauren's 2-year-old daughter Alessi Ren — at home after Senna spent a week in the neonatal intensive care unit for breathing issues following her birth. According to a post on Arie's Instagram Story, their baby girl "needed oxygen" but was "doing much better" four days after her arrival. As for Lux, he spent "just a few hours in the NICU," the new dad of three shared. The couple — who got married in January 2019 after meeting on The Bachelor — announced they were expecting twins in December after revealing that earlier in the year, Lauren had suffered a miscarriage.