Moisture-induced bumps may refer to eczema, urticaria and ringworm and other diseases. 1. Eczema: humidity bumps may be eczema, manifesting as symmetrically distributed erythematous spots, pimples, papules, etc., which may be accompanied by a tendency to ooze, appearing as vesicles, etc., and accompanied by intense itching. 2. Urticaria: moist bumps may be urticaria, usually preceded by itching of the skin, followed by the appearance of red or skin-colored winds. A few patients have edematous erythema, and the size and shape of the bumps vary, and the bumps can be fused into pieces with further development. 3. Ringworm: moist bumps may be caused by ringworm, the disease is caused by fungal infection. Initially manifested as local skin erythema, papules and blisters, some patients with lesions in the center of the recession, spread to the surrounding area, the formation of clear boundaries of the scaly patches. Patients who have pimples in humid environments are advised to go to the hospital in a timely manner, under the guidance of the doctor to clarify the cause of the disease and reasonable treatment, to avoid delaying the condition and causing adverse consequences.