Exposure to UV rays is one of the most common causes of hyperpigmentation. While limiting exposure will do nothing to affect hyperpigmentation you already have it can help prevent further discoloration.  Always wear sunscreen. In strong, direct sun, wear a hat and long sleeves. Don't use tanning beds. Limit your time outside and don't sunbathe. In many cases you won't be able to stop taking a medication just because it causes hyperpigmentation. Hyperpigmentation is a common side effect of birth control and other medication containing hormones. If switching to a new medication or ceasing to take it is an option, it's something to consider. Always talk to your physician before stopping any prescribed medication. Hyperpigmentation can result from trauma to the skin, which can be caused by plastic surgery and other professional skin treatments. Be sure to do thorough research before opting to get plastic surgery. Make sure your doctor or practitioner is highly experienced.

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Write a summary of the previous text in Indonesian:
Batasi diri Anda terhadap paparan sinar UV. Pertimbangkan pengobatan Anda. Hati-hati terhadap perawatan kulit profesional.