Alopecia areata causes autoimmune.. Malignant anemia. Hereditary arthritis, multiple musculoskeletal pain, severe muscular dystrophy, ulcerative colitis

Alopecia areata autoimmune:
Several autoimmune diseases may be associated with alopecia:
Alopecia associated with diseases of the thyroid.
Vitiligo is accompanied with alopecia.
Malignant anemia.
Systemic lupus erythematosus, hereditary arthritis, many musculoskeletal pain, severe muscular dystrophy, ulcerative colitis, flat lichen and endocrine endocrine syndrome...