A lot of bumps on the back may be prickly heat, eczema, acne and so on.
1. Prickly heat: Also known as corn rash, prickly heat occurs when a large amount of sweat does not evaporate easily in a hot and stuffy environment, resulting in narrowed or blocked sweat ducts. The main symptom is the appearance of small blisters or pimples on the skin, and some patients will have tingling or itching.
2. Eczema: Eczema can be caused by a variety of factors such as abnormal immune function, skin barrier dysfunction, and ultraviolet radiation. Typical clinical symptoms are erythema, papules and pimples, accompanied by itching and other symptoms.
3. Acne: Acne is caused by high androgen levels, abnormal peri-corneal keratinization, and pathogenic bacterial infections, and when it involves the back, it can appear as pimples, papules, and skin nodules on the back.
The growth of many bumps on the back may also be caused by folliculitis, contact dermatitis, etc. If the bumps do not subside for a long time, it is recommended to go to the hospital for diagnosis and treatment.