What causes pimples on the forehead?

Generally speaking, pimples refer to acne. Acne on the forehead may be caused by factors such as puberty, stress, consumption of high-sugar foods, bacterial infection, or polycystic ovary syndrome (PCOS). If the above conditions occur, it is recommended to seek medical treatment promptly. Specific analyses are as follows:

1. Puberty

During puberty, elevated hormone levels stimulate the sebaceous glands to produce excess oil, which can clog hair follicles and create an environment conducive to bacterial growth, leading to inflammatory reactions and resulting in forehead acne. Maintain facial cleanliness, use a gentle facial cleanser, and avoid oily cosmetics.

2. High Stress Levels

High stress triggers the body to release more cortisol, which stimulates the sebaceous glands to produce more oil, increasing the risk of clogged follicles and thereby triggering forehead acne. Maintaining healthy lifestyle habits, getting sufficient sleep, and eating a balanced diet can help alleviate stress.

3. Consumption of High-Sugar Foods

High-sugar foods cause rapid spikes in blood glucose and insulin levels, which can disrupt hormonal balance, stimulate sebaceous gland activity, and worsen acne on the forehead. Improving daily dietary habits by reducing intake of high-sugar and high-fat foods, while increasing consumption of vegetables, fruits, and whole grains, helps maintain stable blood sugar levels.

4. Bacterial Infection

Bacterial infection refers to localized or systemic inflammatory responses triggered by pathogenic organisms invading the body. Frequently touching or rubbing the forehead with hands may transfer bacteria to the skin, causing local infection and leading to forehead acne, possibly accompanied by symptoms such as itching and redness. Under the guidance of a healthcare professional, medications such as metronidazole tablets, penicillin V potassium tablets, or amoxicillin capsules may be used for treatment.

5. Polycystic Ovary Syndrome (PCOS)

Polycystic ovary syndrome is a complex disorder caused by endocrine and metabolic abnormalities. PCOS leads to elevated levels of androgens (male hormones), which stimulate excessive oil production by sebaceous glands and promote the development of forehead acne. Other symptoms may include weight gain and increased body hair. It is recommended to follow a doctor’s instructions when using medications such as dydrogesterone tablets, metformin hydrochloride tablets, or clomiphene citrate tablets for treatment.

In daily life, pay attention to skin hygiene, ensure adequate sleep, and develop good作息 habits.