What causes red small bumps on a boy's back?

Generally, red small bumps on the back of males may be related to excessive sweating, excessive sebum secretion, folliculitis, contact dermatitis, and eczema. It is recommended that patients promptly visit a hospital and follow medical advice for treatment. The detailed analysis is as follows:

1. Excessive Sweating: During hot summer months or after intense physical activity, excessive sweating can occur. If sweat is not cleaned off promptly, pores may become clogged, leading to red small bumps. These may be accompanied by mild itching or stinging sensations. It is recommended to promptly wash off sweat and keep the skin dry and clean.

2. Excessive Sebum Secretion: In adolescent or adult males, overactive sebaceous glands may lead to clogged pores and cause red small bumps on the back. It is recommended to maintain good skin hygiene and wear loose, breathable clothing.

3. Folliculitis: When hair follicles are infected by bacteria or fungi, inflammation occurs, potentially causing red small bumps on the back, which may be accompanied by redness, swelling, pain, or itching. Patients are advised to use medications such as fusidic acid sodium ointment, compound polymyxin B ointment, or tretinoin cream under a doctor's guidance to alleviate