What causes pimples on the chest?

Pimples on the chest, commonly referred to as chest acne, may be caused by several factors: 1. **Excess internal heat (commonly termed "fire" in traditional Chinese medicine):** Regular consumption of spicy or stimulating foods combined with insufficient water intake can lead to excessive internal heat. This "fire" prevents the body from effectively expelling toxins, which may then manifest as pimples. The chest area contains numerous sebaceous glands, making it especially prone to breakouts. 2. **Clogged pores:** Inadequate cleansing of the chest skin can lead to a buildup of dead skin cells and thickening of the stratum corneum. This can block pores and lead to folliculitis or inflammation of the hair follicles, resulting in chest acne. 3. **Hormonal imbalance:** An irregular lifestyle, frequent late nights, consumption of spicy foods, heavy alcohol consumption, and smoking can all lead to hormonal imbalances. When this occurs, acne may appear not only on the face but also on the chest and back. 4. **Emotional factors:** Prolonged states of high stress or anxiety can stimulate the secretion of adrenal hormones, which in turn increase oil production in the body. This excess oil can lead to acne on the chest and back. 5. **Poor hygiene:** Wearing unclean clothes or using dirty bedding can irritate the skin over time, potentially causing chest acne. Additionally, poor personal hygiene can lead to clogged pores and impaired oil secretion, which may also result in breakouts.