How Does Alcohol Affect Your Hormones?

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Published July 9, 2024 · Updated October 14, 2026

Medically reviewed by Danesh Alam MD, DFAPA, DFASAM

Yes, alcohol affects several hormone systems, and how much and how often you drink matters most. Drinking tends to raise estrogen levels in women, heavy or long-term drinking lowers testosterone in men, and alcohol disrupts the stress hormone cortisol, blood sugar control, and the hormones that govern sleep, growth, and fluid balance. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system.

Most serious hormone harm comes from heavy or chronic drinking. Some changes from lighter drinking are small, short-lived, or even point the other way.

If you drink heavily every day, do not stop suddenly on your own. Alcohol withdrawal can become life-threatening. Call 911 for seizures, fever, severe confusion, hallucinations, or an irregular heartbeat. MedlinePlus: Alcohol withdrawal.

Does alcohol affect hormones?

The main hormones alcohol changes:

• Estrogen: tends to go up in women, including after menopause. Higher estrogen is one way alcohol raises breast cancer risk. National Cancer Institute: Alcohol and cancer risk.
• Testosterone: heavy or chronic drinking lowers it and can harm sperm production. A small amount of alcohol, drunk once, can briefly raise it. Expert Review of Endocrinology and Metabolism: Alcohol and testosterone synthesis.
• Cortisol: a drinking episode raises it. Years of heavy drinking blunt the body's stress-hormone system.
• Insulin and blood sugar: alcohol can cause low blood sugar for hours after drinking, and heavy drinking raises the risk of type 2 diabetes.
• Thyroid, growth hormone, melatonin, and vasopressin: heavy drinking blunts the thyroid's control signal, alcohol suppresses nighttime growth hormone and melatonin, and it suppresses vasopressin, the hormone that helps you hold on to water.

Does alcohol cause hormonal imbalance?

It can, especially with heavy or long-term drinking, though some changes show up at moderate amounts too. A review published by the National Institute on Alcohol Abuse and Alcoholism (NIAAA) describes alcohol disrupting the stress, reproductive, thyroid, growth, and blood sugar hormone systems. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system.

A note on "moderate." Earlier federal guidelines (2020 to 2025) defined moderate drinking as up to one drink a day for women and two for men. CDC: Moderate alcohol use. The 2025 to 2030 Dietary Guidelines drop those numbers and simply advise people to "consume less alcohol for better overall health." Dietary Guidelines for Americans, 2025-2030. The U.S. Surgeon General's 2025 advisory found that about 17% of alcohol-related cancer deaths occur at drinking levels within those older limits. U.S. Surgeon General: Alcohol and Cancer Risk advisory.

Does alcohol increase estrogen?

In women

Yes. Across human and animal studies, alcohol consistently raised estradiol, a form of estrogen. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system. In a controlled feeding study of 51 postmenopausal women, about two drinks a day raised estrone sulfate by 22% compared with placebo, while about one drink a day raised it by 7%, which was not statistically significant. The changes appeared within four weeks. Nutrition Journal: Moderate alcohol and estrone sulfate in postmenopausal women.

A smaller three-week trial in nine postmenopausal women found no change in estradiol. Alcoholism: Clinical and Experimental Research, Moderate alcohol and hormone levels.

In men

Estrogen can rise in men too, mainly with heavy drinking. Men with alcohol use disorder had higher estrogen and lower testosterone than other men. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system. Raised estrogen has been found in some people with alcohol-related liver disease, and alcohol stimulates aromatase, an enzyme in the liver and fat tissue that converts androgens (male-type hormones) into estrogen. Alcohol Health and Research World: Alcohol's effects on male reproduction.

Does alcohol contain estrogen or "female hormones"?

The research reviewed here does not describe drinks supplying estrogen. It describes alcohol changing how your own body handles hormones: drinking may slow the breakdown of estrogen and increase the conversion of androgens into estrogen. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system; Alcohol Research and Health: Alcohol's effects on female reproductive function.

How does alcohol affect hormones in females?

Periods and fertility

Heavy drinking is linked to problems ranging from irregular cycles to periods stopping altogether, not ovulating, and infertility. Even amounts that don't damage the liver may cause menstrual irregularities, and in one study some social drinkers stopped cycling normally and became at least temporarily infertile. Alcohol Research and Health: Alcohol's effects on female reproductive function.

Chronic drinking can also raise prolactin, a hormone that commonly causes missed periods when it is high. Drinking as little as about five drinks a week was linked to a lower chance of conceiving each cycle in women aged 20 to 35. Alcohol misuse has also been associated with early menopause. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system.

The studies reviewed here did not track periods after quitting. If your cycle changes when you stop drinking, mention it to your doctor.

Pregnancy and puberty

The CDC says there is no known safe amount of alcohol during pregnancy or when you are trying to get pregnant. Alcohol in pregnancy can cause fetal alcohol spectrum disorders. CDC: About alcohol use during pregnancy.

NIAAA notes evidence that alcohol can disrupt or delay puberty. NIAAA: Alcohol's effects on the body. In one study, estrogen was lower in girls aged 12 to 18 for up to two weeks after moderate drinking. Alcohol Research and Health: Alcohol's effects on female reproductive function.

Menopause, hot flashes, and bones

Alcohol can be a trigger for hot flashes for some women. The National Institute on Aging advises women bothered by hot flashes to avoid alcohol, spicy foods, and caffeine. National Institute on Aging: Hot flashes. The evidence is mixed, though: two studies of midlife women found current drinking linked to a lower risk of hot flashes. Fertility and Sterility: Alcohol use, hormones, and hot flashes.

Menopause already speeds bone loss because the ovaries stop making estrogen. Heavy drinking adds to the problem: it affects calcium-regulating hormones, worsens vitamin D deficiency through poor nutrition, and reduces bone density. Alcohol Health and Research World: Alcohol's harmful effects on bone; Alcohol Research and Health: Alcohol and osteoporosis risk in women. Alcohol also impairs fracture healing, and heavy drinking raises fracture risk. NIAAA: Alcohol's effects on the body.

Breast cancer

Compared with not drinking, breast cancer risk is about 1.04 times higher for light drinkers, 1.23 times for moderate drinkers, and 1.6 times for heavy drinkers. National Cancer Institute: Alcohol and cancer risk. NIAAA says even one drink a day can raise a woman's risk by 5% to 15%. NIAAA: Alcohol's effects on the body.

The Surgeon General's advisory puts it in absolute terms: a woman's lifetime breast cancer risk is about 11.3% at less than one drink a week, 13.1% at one drink a day, and 15.3% at two drinks a day. It names altered hormone levels, including estrogen, as one reason. U.S. Surgeon General: Alcohol and Cancer Risk advisory. Stopping is linked to lower risk of some cancers, though risk can take years to fall. National Cancer Institute: Alcohol and cancer risk.

How does alcohol affect testosterone?

Heavy drinking lowers testosterone. Alcohol can interfere with the brain's hormone signals and with the testes, damaging the cells that make testosterone and the cells that support sperm development. That can lead to erectile problems, infertility, and reduced facial and chest hair. In one study, testosterone in men drinking heavily fell within five days and kept falling. Alcohol Health and Research World: Alcohol's effects on male reproduction.

Dose changes the direction. A 2023 review found that a single low-to-moderate amount of alcohol can raise testosterone, while large amounts are linked to a drop. Proposed reasons include more stress-hormone activity, inflammation, and oxidative stress. Expert Review of Endocrinology and Metabolism: Alcohol and testosterone synthesis. Even about three drinks a day for three weeks lowered testosterone by 6.8% in a small trial of middle-aged men. Alcoholism: Clinical and Experimental Research, Moderate alcohol and hormone levels.

Breast enlargement in men is described mainly in heavy drinkers with alcohol-related liver disease. Alcohol Health and Research World: Alcohol's effects on male reproduction.

Will quitting alcohol increase testosterone?

It may, but no human study we reviewed gives a reliable timeline for testosterone to recover after quitting. Levels during withdrawal are not simple: in a study of 99 men in alcohol withdrawal, testosterone started higher than in healthy men and fell over the first two weeks. Alcohol: Testosterone and craving during alcohol withdrawal. If low libido, erectile problems, or fertility concerns continue after you stop, ask your doctor about testing.

Alcohol and cortisol

A drinking episode activates the body's stress-hormone system, causing a dose-related rise in cortisol. With long-term heavy drinking, that system becomes blunted and responds less well to stress. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system.

Rarely, chronic heavy drinking causes a state that looks like Cushing's syndrome. Fewer than 50 cases had been reported, and the hormone changes typically disappear after at least a month without alcohol. Endotext: Pseudo-Cushing's states. Alcohol-related weight gain is better explained by calories. See can you drink alcohol and still lose weight.

Alcohol, insulin, and blood sugar

While your liver is processing alcohol, it stops releasing glucose, so blood sugar can drop quickly. The risk lasts for hours after your last drink and is greatest for people on insulin or certain diabetes medicines. Low blood sugar can look like being drunk. If you have diabetes, check your glucose for up to 24 hours after drinking. MedlinePlus: Diabetes and alcohol.

Chronic heavy drinking causes insulin resistance and is an independent risk factor for type 2 diabetes. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system. It can also cause pancreatitis, which can affect the hormones that regulate blood sugar. NIAAA: Alcohol's effects on the body. Read more in our guide to alcoholism and diabetes.

Sleep, thyroid, growth hormone, and fluid balance

• Sleep and melatonin: in young adults, a moderate dose of vodka an hour before bed lowered melatonin by up to 19%. Chronobiology International: Evening alcohol suppresses melatonin. Alcohol helps you fall asleep but disrupts the second half of the night. Alcohol: Alcohol disrupts sleep homeostasis. See sleep deprivation and mental health.
• Growth hormone: alcohol cut nighttime growth hormone by 70% to 75% in a small study of healthy men. It returned to normal on the first alcohol-free night. Journal of Clinical Endocrinology and Metabolism: Alcohol, sleep, and growth hormone.
• Thyroid: in alcohol use disorder, the thyroid's control signal is blunted, and thyroid hormones are lower during withdrawal and early abstinence. They return toward normal with longer abstinence. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system.
• Vasopressin: alcohol suppresses this water-saving hormone, so you urinate more and lose fluid, which adds to thirst, fatigue, and headache. NIAAA: Hangovers.

How long does it take for hormones to balance after quitting alcohol?

There is no single timeline. It depends on the hormone, how long and how heavily you drank, your liver health, and other conditions. What research shows:

• Days: nighttime growth hormone returned to normal on the first alcohol-free night in one small study. Journal of Clinical Endocrinology and Metabolism: Alcohol, sleep, and growth hormone.
• About a month: insulin resistance fell after one month of abstinence, and bone-building markers normalized within about three weeks. Alcohol Research: Current Reviews, Natural recovery after chronic alcohol use. Rare Cushing-like changes typically clear after at least a month. Endotext: Pseudo-Cushing's states.
• Longer: thyroid function improves with longer abstinence. Alcohol Research: Current Reviews, Effects of alcohol abuse on the endocrine system.
• May not fully recover: bone turnover can stay abnormal for more than five years, and bone damage from heavy drinking may not fully reverse. Alcohol Research: Current Reviews, Natural recovery after chronic alcohol use; Alcohol Research and Health: Alcohol and osteoporosis risk in women. In alcohol use disorder, sleep problems can also persist for years. Alcohol: Alcohol disrupts sleep homeostasis.

Stopping safely

If you drink heavily and often, quitting abruptly can be dangerous. Withdrawal symptoms usually start within 8 hours of the last drink and peak at 24 to 72 hours. Contact a provider or go to the emergency room if you may be in withdrawal, and call 911 for seizures, fever, severe confusion, hallucinations, or an irregular heartbeat. MedlinePlus: Alcohol withdrawal. Our page on alcohol detox explains supervised withdrawal care.

When to see a doctor

• You have diabetes and drink, especially if you take insulin or glucose-lowering medicine.
• You may be in alcohol withdrawal. Get urgent care.
• You have missed or irregular periods, trouble conceiving, low libido, erectile problems, or breast enlargement in men. These have many causes, including alcohol, and a clinician can check your hormone levels.
• You are pregnant or trying to conceive.
• You drank heavily for years and are concerned about your bones.
• You drink more than you meant to or can't cut back. A substance use assessment can help. See signs of functional alcoholism.

Getting help at Ambrosia

Ambrosia's programs treat alcohol use disorder, not hormone conditions, so talk with your own doctor about hormone symptoms or testing. Stopping drinking is what gives many of these changes a chance to improve.

Our admissions team can help you find a starting point. Options include medical detox with round-the-clock medical supervision, alcohol addiction treatment, inpatient rehab, partial hospitalization and intensive outpatient care, and medication-assisted treatment with medicines such as naltrexone and acamprosate. We also offer addiction treatment for women and dual diagnosis care when mental health concerns are part of the picture.