Starting testosterone replacement therapy (TRT) is a positive step toward improving your health and well-being. While many people experience significant benefits, it's also important to be aware of potential side effects. This guide is designed to help you understand these side effects, know what to look for, and learn how to manage them in partnership with your healthcare provider.

A Quick Note on Side Effects: Most side effects are mild and may lessen as your body adjusts to the new hormone levels. Serious side effects are rare, but it's important to know when to seek medical advice. Your healthcare provider will monitor you closely to ensure your treatment is both safe and effective.

Common Side Effects and How to Manage Them

Here’s a look at some of the more common side effects you might experience, along with tips for managing them. Remember, not everyone will experience these, and the severity can vary.

Side Effect

What It Is & Why It Happens

What You Can Do

When to Talk to Your Provider

Acne and Oily Skin

Increased testosterone can cause your skin to produce more oil, which may lead to breakouts.

  • Wash your face twice daily with a gentle cleanser.

  • Use oil-free skincare products.

  • Avoid touching your face frequently.

If acne becomes severe or bothersome.

Mood Swings or Irritability

Your body is adjusting to new hormone levels, which can sometimes affect your mood.

  • Get regular exercise, which can help stabilize your mood.

  • Practice stress-reduction techniques like mindfulness or deep breathing.

  • Ensure you are getting enough sleep.

If you experience significant or persistent mood changes.

Fluid Retention

Testosterone can sometimes cause your body to hold on to more water, leading to a feeling of bloating or swelling, especially in the ankles.

  • Reduce your salt intake.

  • Drink plenty of water.

  • Stay physically active.

If you notice sudden or significant swelling.

Injection Site Reactions

If you are using injectable testosterone, you might experience temporary pain, redness, or swelling at the injection site.

  • Apply a warm compress to the area before injecting.

  • Rotate your injection sites as instructed by your provider.

  • Gently massage the area after the injection.

If you experience severe pain, a large lump, or signs of infection (like pus or a fever).

Changes in Libido

While many people experience an increase in libido, some may notice changes that are unexpected.

  • Give your body time to adjust to the treatment.

  • Communicate with your partner about any changes you're experiencing.

If you have any concerns about your libido.

Less Common but Important Side Effects

These side effects are less frequent, but it's important to be aware of them.

Side Effect

What It Is & Why It Happens

What You Can Do

When to Talk to Your Provider

Breast Tissue Growth (Gynecomastia)

An imbalance between testosterone and estrogen can sometimes cause breast tissue to swell or become tender.

  • Your provider will monitor your hormone levels to minimize this risk.

Contact your provider right away if you notice any breast tenderness, swelling, or lumps.

Increased Red Blood Cell Count

Testosterone can stimulate the production of red blood cells. If the count gets too high, it can increase the risk of blood clots.

  • Your provider will monitor your blood count with regular lab tests.

Your provider will discuss management options with you if your levels are too high, which may include adjusting your dose or donating blood.

Changes in Cholesterol Levels

TRT can sometimes affect your cholesterol levels.

  • Eat a heart-healthy diet rich in fruits, vegetables, and whole grains.

  • Engage in regular cardiovascular exercise.

Your provider will monitor your cholesterol levels as part of your routine blood work.

High Blood Pressure

In some cases, testosterone therapy can lead to an increase in blood pressure.

  • Monitor your blood pressure at home if possible.

  • Reduce your sodium intake and exercise regularly.

If you notice a consistent increase in your blood pressure readings.

When to Seek Immediate Medical Attention

While rare, some side effects require immediate medical attention. Call 911 or go to the nearest emergency room if you experience any of the following:

  • Signs of a blood clot: Sudden shortness of breath, chest pain, swelling or pain in one leg.

  • Signs of a heart attack or stroke: Chest pain, difficulty breathing, weakness on one side of your body, slurred speech.

Frequently Asked Questions (FAQs)

Q: Will these side effects go away?

A: Many of the more common side effects, like mood swings or skin changes, often improve or resolve as your body adjusts to the new hormone levels over the first few months of treatment. Others may require adjustments to your dosage or management strategies.

Q: What can I do to minimize the risk of side effects?

A: The best thing you can do is follow your provider's instructions carefully, attend all your follow-up appointments, and complete your lab work as scheduled. Living a healthy lifestyle with a balanced diet and regular exercise can also help.

Q: I'm worried about a side effect I'm experiencing. What should I do?

A: Don't hesitate to reach out to your healthcare provider. They are your best resource for information and can help you manage any side effects you're experiencing. It's always better to ask than to worry.

Your health and well-being are our top priorities. We are here to support you throughout your treatment journey. Please keep an open line of communication with your care team and report any concerns you may have.