When itching and bumps occur in the joints, consider possible diseases such as eczema, psoriasis, hives, scabies or other dermatitis. The details are as follows:
1. Eczema: it is an inflammation of the skin caused by a variety of internal and external factors, the focal area may appear pimples, mossy lesions and other manifestations, itching feeling strong.
2. Psoriasis: it is a kind of immune-mediated chronic skin disease induced by genetic and environmental factors, easily induced or aggravated by environmental factors, and also easy to recur. It is mainly characterized by papules or macules covered with silvery-white scales, accompanied by itching.
3. Urticaria: can be caused by a variety of etiological factors, the main manifestation of limited edema (i.e., wind,) accompanied by varying degrees of itching.
4. Scabies: caused by scabies mites parasitizing the skin, can be transmitted through contact, manifested as papules, papules, with intense itching.
5. Other dermatitis: such as hormone-dependent dermatitis, contact dermatitis and so on.
It is recommended that patients go to the dermatology department for a clear diagnosis in order to target treatment.