Alopecia areata totalis and universalis are rare. Canine follicular dysplasia is an inherited disorder of the hair follicles resulting in alopecia (baldness). Typical first symptoms of alopecia areata are small bald patches. It is the most severe form of alopecia areata. Type 1 diabetes is associated with alopecia areata (AA). Its effect in people with alopecia areata is unclear. Endogenous retinoids metabolic defect is a key part of the pathogenesis of the alopecia areata. A study found latanoprost ineffective on eyelashes in a patient with alopecia areata. A few cases of babies being born with congenital alopecia areata have been reported. It has also been used successfully in the treatment of alopecia areata. A breach in this immune privilege state is considered as the cause of alopecia areata. Other symptoms may include diarrhea, alopecia and dermatitis. Dermatologic symptoms include dermatitis, alopecia, and achromotrichia (absence or loss of pigment in the hair). Androgenic alopecia, or male pattern hair loss, is a common cause of concern to men. This can lead to itching, eczema, alopecia or conjunctivitis.