We suspect celiac disease in patients with vague indigestion problems, diarrhoea or increased urinary frequency, bloating and gases, or sometimes with atypical abdominal pain. We can also observe fatigue, oral ulcers, itchy blister rash on the skin (dermatitis herpetiformis), nervous system disorders, depression, etc.
Sometimes, the patients do not exhibit any particular problems, but celiac disease is still suspected, mainly due to related disorders; anaemia, or iron deficiency, is especially suggestive of celiac disease, and so are early osteoporosis, various autoimmune diseases, such as non-insulin-dependent diabetes mellitus of type 1, alopecia areata, vitiligo, various rheumatic disorders etc..
Among close relatives of those suffering from celiac disease, this disorder is up to 10 times more frequent (about 1 out of 10 relatives gets sick), so in such cases we opt for the prevention or examination already at the slightest suspicion of the disease.