Alopecia areata Typical first symptoms of alopecia areata are small bald patches. The underlying skin is unscarred and looks superficially normal. Although these patches can take many shapes, they are usually round or oval. Alopecia areata most often affects the scalp and beard, but may occur on any part of the body with hair. Different areas of the skin may exhibit hair<unk>  and regrowth at the same time. The disease may also go into remission for a time, or may be permanent. It is common in children. The area of hair<unk>  may tingle or be mildly painful. The hair tends to fall out over a short period of time, with the<unk>  commonly occurring more on one side of the scalp than the other. Exclamation point hairs, narrower along the length of the strand closer to the base, producing a characteristic "exclamation point" appearance, are often present. These hairs are very short (3–4 mm), and can be seen surrounding the bald patches. When healthy hair is pulled out, at most a few should come out, and ripped hair should not be distributed evenly across the tugged portion of the scalp. In cases of alopecia areata, hair tends to pull out more easily along the edge of the patch where the follicles are already being attacked by the body's immune system than away from the patch where they are still healthy. Nails may have pitting or trachyonychia.
types of Hair loss
symptom of Osteomyelitis
symptom of Osteoporosis
symptom of Cartilage–hair hypoplasia
symptom of Bone tumor
symptom of Skin cancer
symptom of Osteoarthritis
symptom of Keratoconus