Acne on the face is medically known as acne vulgaris. Acne on the face before menstrual period may be caused by excessive oil secretion, hypersebaceous glands due to increased androgen levels, resulting in large amounts of sebaceous overflow causing clogging, bacterial infection and other causes. The reason for this is that it can be caused by a number of factors, including 1. Excessive oil secretion: If the weather is hot, or if you have recently consumed too much spicy, greasy and stimulating food, the sebaceous glands of the face may secrete excessively, and excessive oil secretion will clog the pores, which may ultimately lead to acne on the face of the patient before her period. 2. Increased androgen levels: Increased androgen levels in a woman’s body before her period will increase the activity of the sebaceous glands, and sebum mixed with shed epidermal tissues will clog pores, which can also lead to acne attacks. 3. Bacterial infection: endocrine disorders may occur before a woman goes on vacation, leading to exuberant secretion of sebaceous glands, causing Propionibacterium acnes to proliferate, which stimulates inflammatory reactions around the hair follicles and hair follicles, resulting in the appearance of pimples, pustules and other symptoms on the patient’s face. There are many reasons for acne on the face before vacation, so it is recommended that the patient can go to a regular hospital to clarify the cause of the disease and then treat the symptoms.