"This makes me sad. What's wrong with your husband? He looks very sick," amberlynguerra agreed.
Some fans were so concerned that they begged Jill Duggar and her husband to return home.
"Omg come home already your poor husband looks so so sick... i get it you want to do good deeds but at what cost?? Look at ur wedding photos, drastic changes in his appearance," u_dont_own_me_ commented.
The two photos at the top of the page show the dramatic change in Derick Dillard's appearance. As you can see, his face and neck appear to be much thinner than they used to be.
Many commenters started speculating about the possible cause of the drastic change in Derick's appearance. A few of Jill Duggar's Instagram followers suggested that he picked up a disease in El Salvador that caused him to lose a lot of weight, and others wondered whether his weight loss is related to the jaw surgery that he underwent last year. There was speculation that something went wrong with all the orthodontic work that he had done, and some fans even expressed concerns that Derick has been abusing painkillers.
"Looks like what opiates do to addicts. Sorry but he looks terrible. I sure hope he's ok," flyhighbaby42313 wrote.
"I think it's from the jaw surgeries all those dentist appointments and pain meds," shes_def_a1 wrote.
According to People, Derick Dillard underwent surgery to have his palate expanded last April shortly after Jill Duggar gave birth. As The Inquisitr previously reported, the procedure he underwent is called surgically assisted rapid palatal expansion (S.A.R.P.E.), and it requires the fracturing and cutting of bones in the mouth. Patients are then fitted with an "orthopedic expanding appliance."
The photo below was taken a few weeks after Derick's surgery.