Prostate cancer treatment can affect your sexual health. Surgery, radiation, and hormone therapy are often effective, but they can change how your body works sexually. Knowing what might happen and what help is available can make recovery easier.

Sexual side effects are common concerns for prostate cancer survivors. They affect your body and emotions, and they impact your relationships. This article covers the most common changes, why they happen, and how to manage them.

Why Treatment Affects Sexual Function

The prostate sits close to nerves and blood vessels that control sexual function. Surgery or radiation on the prostate can damage these nearby structures. Hormone therapy works differently by lowering testosterone, the hormone that drives sexual desire in men. When testosterone drops, sex drive usually drops too.

Sexual problems are one of the most common side effects men face during and after prostate cancer treatment, according to the National Cancer Institute. Being prepared before these changes happen helps you respond and get support.

Erectile Dysfunction

Erectile dysfunction (ED) — trouble getting or keeping a firm erection — is the most common sexual side effect of prostate cancer treatment.

Surgery to remove the prostate (radical prostatectomy) requires working very close to the nerve bundles that control erections. Even with nerve-sparing surgery, many men have ED right after. For many, erectile function improves over time. Recovery can take months or even years.

External beam radiation and internal radiation (brachytherapy) can slowly damage the blood vessels and nerves that support erections. Radiation effects often appear more slowly than surgery effects. Some men notice changes months or years after treatment ends.

The chance of erection problems after treatment depends on your age, the type of treatment you received, and how your erections were before treatment, according to Cancer Research UK. Men with strong erections before treatment tend to recover better.

Changes in Ejaculation and Orgasm

Ejaculation and orgasm can change significantly after prostate cancer treatment. The prostate produces most of the fluid that makes up semen. When the prostate is removed or affected by radiation, ejaculation will likely be different.

Common changes include:

• Dry orgasm: After surgery, no fluid is released during orgasm because the prostate and seminal vesicles are removed. Many men still experience pleasure from orgasm. It just feels different. This change is permanent after surgery.
• Reduced ejaculate volume: After radiation therapy, the amount of fluid released during orgasm may decrease over time.
• Climacturia: Some men release a small amount of urine at the moment of orgasm. This is called climacturia and is most common after surgery. It is not dangerous and may improve with pelvic floor exercises.
• Changes in orgasm intensity: Some men describe orgasm as less intense or different after treatment. Not every man experiences this, but it is possible.
• Painful orgasm: Rarely, men feel some discomfort during orgasm, especially after radiation. This often improves over time. Talk with your care team about it.

A clinical review found that care teams often overlook ejaculatory and orgasmic dysfunction in prostate cancer care, according to research in the National Institutes of Health database. The authors recommend discussing these changes with patients before and after treatment, including more than just erectile dysfunction.

Loss of Sex Drive (Low Libido)

A significant drop in sex drive is especially common in men who receive hormone therapy, also called androgen deprivation therapy (ADT). Hormone therapy lowers testosterone, the hormone most tied to sexual desire in men. When testosterone levels fall, sex drive often follows.

Low sex drive is the most common sexual side effect of hormone therapy for prostate cancer, according to Cancer Research UK. The impact varies from man to man. Some notice only a mild reduction in interest. For others, the change is more significant and affects daily life and relationships.

For men on short-term hormone therapy, sex drive may return once treatment ends and testosterone levels rise again. For men on longer-term treatment, the effect may last throughout therapy. Either way, this is a real concern worth raising with your care team.

Body Image and Emotional Changes

Hormone therapy can also change the way your body looks and feels. Common physical effects include weight gain, loss of muscle, fatigue, and sometimes breast tissue growth (a condition called gynecomastia). These changes can affect how you feel about yourself and your desire for closeness with a partner.

Grief, frustration, and embarrassment are normal responses to sexual changes after cancer treatment. Many men feel a sense of loss — of a physical function, but also of identity and confidence. Partners often feel uncertain too, unsure how to support their loved one.

These feelings deserve attention. Ignoring them makes recovery harder. Mental health support — including counseling, couples therapy, and peer support groups — can help alongside medical treatment.

Managing Erectile Dysfunction: What May Help

Several options may help men manage ED after prostate cancer treatment. The right approach depends on your health, the type of treatment you had, and your personal goals. A urologist or sexual health specialist can guide you. Common options include:

• Oral medications: Certain medicines may help increase blood flow to the penis and support erections. They work better when some nerve function remains and when erections were working well before treatment. During hormone therapy, they may be less effective because low testosterone limits their action.
• Vacuum erection devices: A vacuum pump draws blood into the penis, and a tension ring helps maintain the erection. This device may help some men, including during early recovery after surgery.
• Penile injections: A small amount of medicine is injected directly into the penis before sexual activity. This may work even when oral medications do not, including after surgery that affected the nerve supply.
• Penile rehabilitation programs: These programs involve regular stimulation — sometimes using devices or medications — to keep penile tissue healthy and support recovery after treatment. The evidence for specific programs is still developing, but many specialists suggest starting early, ideally before or shortly after treatment.
• Penile implants: For men who have not had success with other options, a surgically placed implant may be considered. This is a longer-term solution discussed with a specialist urologist.

The NCI notes that treatments for sexual problems work best when started early and when both physical and emotional factors are addressed together.

Managing Low Libido During Hormone Therapy

While it is generally not possible to raise testosterone while on hormone therapy — since lowering it is the therapy's purpose — some strategies may help you feel better and support your overall wellbeing:

• Regular exercise: Physical activity, including aerobic exercise and strength training, may help manage fatigue, preserve muscle, and improve mood. Better mood and energy often support a sense of wellbeing that can make intimacy more accessible, even when sex drive is lower.
• Intermittent hormone therapy: For some men, oncologists may consider an intermittent approach — periods on and off therapy. This may allow testosterone levels and sex drive to partially recover during breaks. Ask your oncologist whether this approach is right for you.
• Counseling and sex therapy: A counselor or sex therapist experienced with cancer survivors can help you and your partner find meaningful ways to stay intimate, even when sex drive has changed.

Pelvic Floor Exercises

Pelvic floor exercises — sometimes called Kegel exercises — involve squeezing and releasing the muscles at the base of the pelvis. These are the same muscles you use to stop the flow of urine. Strengthening them may help reduce urinary leakage during orgasm (climacturia) and may support some improvement in erectile function over time.

Pelvic floor therapy can help rebuild muscle strength and support urinary and sexual health after cancer treatment, according to the American Cancer Society. A pelvic health physiotherapist can teach you to do these exercises correctly and tailor a plan to your needs.

Talking With Your Partner

Sexual side effects after prostate cancer treatment affect both partners. Open and honest communication is one of the most valuable tools for couples dealing with this together.

Some things that may help:

• Sharing feelings without blame or pressure
• Exploring new forms of closeness that do not focus only on intercourse — touch, warmth, and emotional connection all matter
• Attending couples counseling or a prostate cancer support group together
• Giving recovery time — physical and emotional healing both take patience

Intimacy is broader than sexual intercourse. Some couples find that going through these changes together strengthens their connection in unexpected ways. Others need more outside support, and that is completely normal too.

When to Talk to Your Doctor

Do not wait until your next routine appointment if sexual side effects are causing you distress. You can bring up these concerns at any visit. Writing down your questions before you go may help. Ask about referrals to a urologist, a sexual health specialist, or a pelvic floor physiotherapist. Your care team has heard these concerns before and is there to help. Effective support is available.

This article is for general information and is not a substitute for medical advice. Always consult your oncologist or care team about your specific situation.