Fortunately, following agluten-free dietcan help restore any hair you may have lost while undiagnosed or still eating gluten.

Malnutrition can cause hair loss, along with a host of other problems.

Once you fix any vitamin deficiencies related to being malnourished, your hair should grow back.

Woman with hair loss in her hand

Doucefleur / Getty Images

Celiac disease is also related to other autoimmune diseases, conditions where your immune system attacks your body.

In general, having one autoimmune disease makes you more likely to develop a second autoimmune condition.

Full-body hair loss is known as alopecia universalis.

alopecia areata

DermNet /CC BY-NC-ND

This photo contains content that some people may find graphic or disturbing.

DermNet /CC BY-NC-ND

Alopecia usually begins in childhood and affects both genders equally.

Like with celiac disease, there is no cure for alopecia.

Since then, other reports have linked celiac disease with alopecia areata.

Even in people without celiac disease, alopecia can be very unpredictable.

Sometimes the hair simply grows back by itself.

Pratt CH, King LE Jr, Messenger AG, Christiano AM, Sundberg JP.Alopecia areata.Nat Rev Dis Primers.

Should he or she get tested for celiac disease?

2018;10(7).

2018;66(1):48-52. doi:10.2174/138920211798120763