What happens if a man takes estrogen for a week?

Author: Alek Cummerata  |  Last update: Monday, July 21, 2025

Estrogen hormone therapy will typically change a person's libido and their genitals. Individuals may experience: a reduction in the number, duration, and firmness of erections. shrinking of the testicles to less than half their original size.

How long does it take for estrogen to work on a male?

After you begin feminizing hormone therapy, you'll notice the following changes in your body over time: Fewer erections and a decrease in ejaculation. This begins 1 to 3 months after treatment starts. The full effect happens within 3 to 6 months.

What does taking estrogen do to a man?

Soon after beginning hormone treatment, you will notice a decrease in the number of erections you have; and when you do have one, you may lose the ability to penetrate, because it won't be as firm or last as long. You will, however, still have erotic sensations and be able to orgasm.

What happens if a man takes estrogen then stops?

If you stop taking hormones you may lose your hair faster than if you hadn't taken hormones. You may lose muscle and strength in your upper body. Your skin may become softer. Your body will make less testosterone.

How much estrogen is bad for men?

A fully grown male usually has an estradiol level of 10-40 picograms per milliliter (pg/ml) and an estrone level of 10-50 pg/ml. Although the male body needs estrogen to function properly, high estrogen levels can cause health problems such as gynecomastia, erectile dysfunction, or infertility.

Hormones and Gender Transition

Can a man overdose on estrogen?

Although the male body needs estrogen to function correctly, too much estrogen can cause health problems. Increased levels of estrogen can cause symptoms such as infertility, erectile dysfunction, and depression. A person who is concerned about their estrogen levels should contact their doctor.

Does estrogen in men cause belly fat?

Low or high estrogen

Low levels of estrogen in males can cause low sexual desire and excess fat around the belly. However, the reverse is also true. According to a 2018 article, high estrogen levels can also cause weight gain in males under 60. A doctor may recommend medications to treat low or high estrogen.

Can you get hard on estrogen?

Sexual changes

Once a person starts taking estrogen hormone therapy, they may begin to experience erectile dysfunction and fewer erections. However, a person will still be able to reach orgasm.

How long can you stay on estrogen?

For symptoms such as hot flushes, you'll usually need to take HRT for 2 to 5 years, but it can be longer in some cases. It's best to only take HRT for as long as the benefits outweigh the risks. This depends on your symptoms, your age and any risk factors you have.

Does estrogen shrink Adam's apple?

Bone structure and height will not change, and the Adam's apple will not shrink.

What does estrogen do to a man's brain?

Aromatase expressing cells in the brain convert circulating testosterone into estrogen, and it is this local estrogen that is thought to control dimorphic behaviors in males (Figure 1A) (MacLusky and Naftolin, 1981; Naftolin and Ryan, 1975).

Can a man take estrogen to look more feminine?

To help make you look more feminine, you can take estrogen, progesterone and androgen blockers. These medications work together to help change how you look, but each has slightly different effects. Softer skin and increase in fat in the hips, butt and, sometimes, face.

What happens if you take testosterone and estrogen at the same time?

Conclusion Consistent with the elevation in risk for endogenous testosterone levels, women using estrogen and testosterone therapies have a significantly increased risk of invasive breast cancer.

What to expect in the first week of TRT?

Week 1 tends to produce small improvements in the quality of your sleep, so you have more energy in the morning and are more alert during the day. You may also start to feel a little stronger. Week 2 often sees an improvement in sex drive and erections, including the return of morning erections.

Does taking estrogen make you curvy?

Hormones will change your body because of fat redistribution, but hormones won't change your bones. Fat redistribution can help fill out your hips, breasts, and even your cheeks, giving you a curvier figure. So even though your body will look different, your bone structure will not change.

Do you age faster without estrogen?

Estrogen deficiency following menopause results in atrophic skin changes and acceleration of skin aging. Estrogens significantly modulate skin physiology, targeting keratinocytes, fibroblasts, melanocytes, hair follicles and sebaceous glands, and improve angiogenesis, wound healing and immune responses.

What happens if you take estrogen for too long?

Risks of long-term use

Other potential risks of long-term HRT use include: increased risk of breast cancer. increased risk of blood clots. increased risk of heart attack or stroke.

Does estrogen cause weight gain?

One form of estrogen, called estradiol, decreases at menopause. This hormone helps regulate metabolism and body weight, so lower levels may lead to weight gain. After menopause, a person tends to gain weight around their midsection and abdomen. This type of fat is known as visceral fat.

Does estrogen increase size?

Thus, estrogen is the hormone necessary for normal skeletal growth and maturity. Estradiol concentrations measured using an ultrasensitive assay are similar in males and females at the time of the pubertal growth spurt; these data are consistent with the premise that estrogen has a role in growth.

What happens when a man starts taking estrogen?

Estrogen hormone therapy is a treatment option for people with gender dysphoria. It causes the development of typically feminine traits, such as breast tissue, decreased muscle mass, and a reduction in facial and body hair.

Is estrogen hard on the heart?

Estrogen is protective of the heart in the pre-menopausal years—it relaxes the arteries and promotes good cholesterol. “But as menopause approaches, estrogen declines, and we see more cardiovascular risk factors, such as high cholesterol and hypertension, in women,” Dr. Spatz says.

Why is my husband's stomach so big and hard?

The hard belly is caused by the build-up of visceral fat, a soft belly is caused by subcutaneous fat, which is located near to your skin. Subcutaneous fat makes your belly jiggly, unlike the visceral fat. One cause behind the build-up of visceral fat could be your genetics.

Is estrogen bad for males?

But it also does similar things, to different levels, in a man's body. In fact, estrogen is found throughout a man's body. It is produced in a man's skin, brain, bones, and testicles—so we can already guess that it is pretty important. Much like in women, estrogen is important to bone health in men.

Does estrogen get rid of belly fat?

How Estrogen Replacement Therapy Can Help with Belly Fat During Menopause. Recent studies show that menopausal women on hormone therapy tend to have less body fat, especially visceral belly fat. Because estrogen affects how your body distributes fat, low estrogen levels can contribute to gaining fat in your belly area.

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