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Look at your health history. Note any medications you are taking. Check for plant oils in your body care products. Examine any drug use habits.
Some men are at a higher risk of developing gynecomastia than others. Consider your age, medical history, and overall health. You are more likely to develop gynecomastia if you:  Are going through puberty or are between 50 and 69 years of age. Newborns can also develop gynecomastia. Infant gynecomastia usually resolves on its own before the child is a year old.  Have a condition that affects your body’s ability to produce testosterone, such as pituitary insufficiency or Klinefelter’s syndrome. Have a liver condition, such as cirrhosis or liver failure. Have a hyperactive thyroid gland. Have certain types of tumors, especially in the pituitary gland, adrenal gland, or testes. Certain types of prescription drugs can cause gynecomastia. You may be at risk if you are using:  Medications to treat an enlarged prostate or prostate cancer. Anabolic steroids. Some types of AIDS medications. Tricyclic antidepressants. Certain types of anti-anxiety medications, such as diazepam. Some types of antibiotics. Certain heart medications, such as digoxin. Gastric motility medications, like metoclopramide. Some plant oils, such as lavender and tea tree oil, contain natural chemicals that mimic the estrogen hormone. These oils may cause gynecomastia to develop in some men. Check the ingredient labels on your soaps, shampoos, body lotions, aftershave, and other common products for plant oils. Gynecomastia caused by plant oils should go away shortly after you stop using products containing these oils. Recreational drugs such as alcohol, marijuana, amphetamines, heroin, or methadone may cause gynecomastia in some men. If you use any of these drugs and are concerned about developing gynecomastia or other health problems, work with your doctor to determine the healthiest way to cut back or stop using the drug(s) altogether.