In the summer face acne, mainly due to the hot weather, personal emotional instability, serious constipation and other reasons, the specific causes need to be combined with personal physical condition to determine. 1. Summer weather is hot and stuffy: acne in summer, especially oily skin people, in the summer time is more likely to secrete a lot of oil, oil clogged pores are easily retained in the skin, thus leading to acne. 2. Individual emotional instability: summer weather is hot and muggy, individuals are prone to emotional instability, which can lead to endocrine disorders, endocrine disorders will indirectly lead to face acne. 3. Serious constipation: summer sweating is relatively large, the amount of drinking water is relatively small, it is easy to constipation, the intestinal tract in the accumulation of more garbage, the body detoxification metabolism function is weakened, may lead to face long acne. There are many reasons for acne in the summer, and if you can’t determine the cause, you can go to your local skin clinic and recommend good facial care and treatment in a reasonable way.