neck pigmentation in pregnancy - #14104
I am really concerned about something that’s been happening lately. I’m about 5 months along now, and I noticed this weird neck pigmentation in pregnancy that started around week 10. At first, I thought it was just a shadow or something, but it’s like this darker area on my neck that definitely isn’t going away. I don’t know if it’s just me being paranoid or if this neck pigmentation in pregnancy is something I should be worried about. I’ve read a little bit about it online, and some sources say it’s normal due to hormonal changes? But like, is it serious or could it be a sign of something else? I also have noticed some other skin changes, like slight darkening under my arms and on my face too — could this be connected to the neck pigmentation in pregnancy? I did ask my OB about it, and she just said it might be from the increased melanin, but like… should I keep an eye out for other symptoms or does this neck pigmentation in pregnancy usually just fade away after delivery? I’m just kinda stressed about it all, you know? Any thoughts would help!
100% Anonymously
No sign-up needed.

Doctors’ responses
The neck pigmentation you’re observing is actually pretty common during pregnancy and usually not something serious. It sounds like what’s called “melasma” or “chloasma” which is sometimes known as the “mask of pregnancy.” This type of hyperpigmentation is triggered by hormonal changes during pregnancy, specifically an increase in estrogen and progesterone, which enhance melanin production in your skin. The fact it’s also showing under your arms and face is not unusual—these are areas where the skin is naturally more pigmented and can become even more so during pregnancy. Your OB is likely correct in pointing to melanin as the cause. Generally, this pigmentation is harmless and fades a few months after delivery. However, I understand it can be unsettling when it’s unexpected. You can keep an eye on the pigmentation and look for any unusual changes, like itchiness, rapid spreading, or development of new patches that seem different in color. If any symptoms like these occur, or if your comfort level about the changes reaches a concern, setting up a follow-up with your dermatologist or OB could be a good idea for peace of mind. For the time being, protect your skin by wearing broad-spectrum sunscreen daily, even if staying indoors, as UV exposure can accentuate pigmentation. There’s typically no need for medical treatment unless it’s a cosmetic concern for you after delivery. In that case, dermatological options like topical creams or procedures can be discussed after consulting your healthcare provider.
100% Anonymously
Get expert answers anytime, completely confidential. No sign-up needed.
About our doctors
Only qualified doctors who have confirmed the availability of medical education and other certificates of medical practice consult on our service. You can check the qualification confirmation in the doctor's profile.