Are people with alopecia areata more likely to have other autoimmune conditions? If you have one autoimmune condition, you more likely to develop another autoimmune condition. About 25% of people will have more than one autoimmune condition. In addition, it is more likely for those with autoimmune conditions to have close family members with autoimmune conditions. Other autoimmune conditions include: Coeliac Disease Crohn’s Disease Fibromyalgia Hashimoto’s Thyroiditis Lupus Multiple Sclerosis Psoriasis Rheumatoid Arthritis Vitiligo This is not an exhaustive list.