Hormone replacement therapy replaces estrogen and progesterone that your body stops making during menopause

Hormone replacement therapy (HRT) is a medical treatment that supplies hormones your ovaries no longer produce after menopause. Most commonly, it delivers estrogen, progesterone, or both through pills, patches, creams, or injections. The goal is to reduce symptoms like hot flashes, night sweats, vaginal dryness, and mood changes that happen when hormone levels drop.

HRT does not stop menopause or reverse it. Instead, it manages the physical and emotional effects while your body adjusts to lower hormone levels. Some women use it for a few months; others continue for several years. The decision to use HRT, how long to use it, and which type depends on your symptoms, medical history, and what your doctor recommends.

Key Takeaways

  • HRT delivers estrogen, progesterone, or both to ease hot flashes, night sweats, sleep problems, and mood changes during menopause.
  • Estrogen-only therapy is typically prescribed for women without a uterus; women with a uterus usually receive estrogen plus progesterone to protect the uterine lining.
  • HRT comes in multiple forms—pills, patches, gels, creams, and injections—and your doctor helps determine which works best for your situation.
  • Risks and benefits vary by age, how long you use HRT, and your personal health history, so discussing these with your doctor is essential before starting.

How HRT works in your body

During menopause, your ovaries produce less estrogen and progesterone. This drop triggers the symptoms many women experience: sudden heat in the face and chest, sweating at night, trouble sleeping, vaginal dryness, and shifts in mood or memory. HRT replaces these hormones at levels high enough to reduce or stop these symptoms.

The hormones in HRT are either identical to those your body made (called bioidentical) or synthetic versions that work similarly. Once in your bloodstream, they attach to the same receptors your natural hormones would have, signaling your body to function as it did before hormone levels fell. This is why symptoms often improve within weeks, though some women need time to find the right dose and form.

Types of HRT: estrogen-only versus combination therapy

Estrogen-only HRT is prescribed mainly for women who have had a hysterectomy (surgical removal of the uterus). Without a uterus, there is no uterine lining to protect, so progesterone is not needed.

Combination HRT contains both estrogen and progesterone and is standard for women who still have a uterus. Progesterone protects the uterine lining from overgrowth, which can increase cancer risk if estrogen is given alone. The two hormones can be delivered together in one product or separately.

Your doctor will recommend one type based on your medical history and whether you have a uterus. If you are unsure which you have had, bring any surgical records to your appointment.

Forms of HRT and how to use them

HRT comes in several forms, and the one you choose affects how often you take it and how your body absorbs it.

Pills are taken by mouth, usually once daily. They pass through your digestive system and liver before entering the bloodstream, which means your liver processes them more heavily than other forms.

Patches stick to your skin and release hormones through it over several days, usually three or seven days depending on the brand. You change the patch on a set schedule. Patches bypass the liver, so they deliver a steadier dose.

Gels and creams are rubbed onto the skin daily and absorbed similarly to patches. Some women find them easier to adjust because you can change the amount you explore.

Injections are given by a doctor or nurse, usually every few weeks or months, depending on the medication. They deliver a measured dose directly into muscle or under the skin.

Your doctor will discuss which form fits your lifestyle and medical needs. Some forms work better for certain symptoms or health conditions.

Common symptoms HRT can reduce

HRT is most effective for vasomotor symptoms—the physical sensations tied to sudden hormone changes. These include hot flashes (sudden intense heat in the upper body), night sweats that soak clothing or bedding, and the rapid heartbeat or flushing that can come with them.

HRT also helps with vaginal dryness, which can make intercourse uncomfortable, and with sleep disruption caused by night sweats or other menopausal changes. Some women report improvement in mood, brain fog, and joint aches, though the evidence for these is less clear than for hot flashes and sweating.

Symptoms that do not respond well to HRT include weight gain and thinning hair, which are related to menopause but driven by other factors like metabolism and aging.

Risks and benefits: what research shows

HRT reduces hot flashes and night sweats in most women who take it. The symptom relief usually appears within two to four weeks and continues as long as you take the medication.

Research also shows that HRT can help prevent bone loss in the years right after menopause, which is important because bone density drops quickly during this time. Some studies suggest HRT may lower the risk of heart disease and type 2 diabetes in women who start it early in menopause, though this remains an active area of research.

Potential risks include a small increase in blood clots, stroke, and breast cancer with long-term use, particularly with combination therapy. The risk varies based on your age, how long you use HRT, the dose, and your personal health history. Older women and those with certain conditions face higher risks. Your doctor will weigh these against the benefit of symptom relief in your specific situation.

The decision to use HRT is individual. Some women decide the symptom relief is worth the small increased risk; others prefer to manage symptoms without hormones. Neither choice is wrong—it depends on your symptoms, your health, and what matters most to you.

How long women typically use HRT

There is no set timeline for HRT. Some women use it for six months to a year while their symptoms are worst, then stop. Others continue for five years or longer. Your doctor may recommend a trial period to see if HRT helps your symptoms, then discuss whether to continue, adjust the dose, or stop.

If you decide to stop HRT after using it for a while, your doctor will usually recommend tapering the dose gradually rather than stopping suddenly. This reduces the chance that symptoms will return abruptly. The tapering process typically takes weeks to a few months.

Frequently Asked Questions

Does HRT cause weight gain?

HRT itself does not directly cause weight gain, but menopause does slow metabolism, which can lead to weight gain regardless of whether you use HRT. Some women on HRT maintain their weight more easily than those not on it, while others notice no difference. Weight changes during menopause are driven mainly by age and activity level rather than HRT.

Can I use HRT if I have a family history of breast cancer?

A family history of breast cancer does not automatically rule out HRT, but it does mean your doctor needs to know about it before prescribing. Your doctor will assess your overall risk and discuss whether HRT is appropriate for you. Some women with family history do use HRT safely; others are advised against it based on their specific situation.

What happens if I miss a dose of HRT?

If you miss a pill, take it as soon as you remember, unless it is almost time for your next dose. If you miss a patch change, explore a new patch as soon as you notice. Missing one dose or patch change will not cause harm; your symptoms may return slightly, but they will not worsen permanently. Ask your doctor or pharmacist for specific instructions for the form you are using.

Is bioidentical HRT safer than synthetic HRT?

Bioidentical hormones are chemically identical to those your body made, while synthetic hormones are similar but not exact copies. Both work in your body the same way, and research does not show that bioidentical is safer than synthetic. The form you use (pill, patch, gel) and the dose matter more than whether the hormone is bioidentical or synthetic.

Can men use HRT?

HRT as described here is for women going through menopause. Men do not go through menopause, though testosterone levels do decline with age. Hormone therapy for men is a different treatment with different goals and is managed separately by a doctor.