Medical Oncologist
Sexual health during treatment
Erectile Dysfunction and Sexual Changes — in Men on Cancer Treatment
Cancer treatment can change how erections and sexual function work — sometimes immediately, sometimes gradually over months. The type of change depends on what treatment you are having. This page explains what to expect, what to do before you start, and what your options are.
Medically reviewed by Dr. T. Raghavender Reddy, Medical Oncologist, MBBS · DM (Medical Oncology) · MD (Radiation Oncology) · Last reviewed August 2026
- It depends on the treatment — Surgery and hormonal therapy carry the highest risk. Chemotherapy's effect is less direct.
- Fertility decisions are urgent — Sperm banking needs to happen before your first treatment cycle — not after.
- Many changes are manageable — There are medical options for erectile dysfunction that work better when raised early.
- You have to ask — Most oncologists will not raise sexual health unless you do. Bringing it up opens the options.
17+
Cancer Specialists
on Panel
on Panel
96.9%
Breast Cancer
Survival Rate*
Survival Rate*
15,000+
Patients
Treated
Treated
4.8★
Google Rating
(800+ reviews)
(800+ reviews)
Cancer treatment affects erections and sexual function in most men, but the type and severity depend on what treatment you are having. Surgery and hormonal therapy carry the highest risk. Before your first treatment cycle, ask about sperm banking. ASCO recommends waiting at least 6 months after chemotherapy before trying to conceive.
Which treatments are most likely to affect erections?
Your risk of erectile dysfunction depends on your specific treatment. Surgery to the prostate, pelvic radiation, and hormonal therapy (ADT) all carry a meaningful risk of sexual changes. Chemotherapy has a less direct effect, though fatigue and hormone shifts contribute for many men.
If you want to preserve fertility, act before your first treatment cycle. Sperm banking typically takes one to two days and can be arranged through a fertility centre your team refers you to. Once chemotherapy or pelvic radiation has started, this window becomes more limited.
ASCO recommends that men who have received cytotoxic chemotherapy wait at least 6 months before trying to conceive, to allow any treatment-affected sperm to clear. If you have had pelvic radiation, discuss the specific recommended interval with your oncologist, as the timeframe may differ.
How do different treatments affect sexual function?
| Treatment | Effect on erections and libido | When it starts | Likely to improve after treatment? | Fertility impact |
|---|---|---|---|---|
| Surgery (prostatectomy) | Erections often significantly affected immediately; libido usually preserved unless nerve damage occurs | Immediate | Partial recovery possible over 12 to 24 months, more likely with a nerve-sparing technique | Surgery alone does not damage sperm production; ejaculation changes are common |
| Pelvic radiation | Erections affected gradually; libido usually preserved initially | Weeks to months after treatment ends | Partial improvement possible; tends to stabilise rather than fully resolve | Can damage sperm production; bank before treatment starts |
| Hormonal therapy (ADT) | Both erections and libido significantly affected | Within weeks of starting | Often improves months after stopping; timeline varies between individuals | Testosterone suppression reduces sperm production; discuss banking before starting |
| Chemotherapy | Less direct effect on erections; libido often reduced by fatigue and hormone changes | During active treatment | Usually improves after treatment ends | Cytotoxic drugs can temporarily or permanently affect sperm — bank before first cycle |
What should you do before your first treatment session?
- Tell your oncologist you want to discuss sexual health and fertility — they will not always raise it unprompted.
- If you want to preserve fertility, ask for a referral to a sperm bank. This must happen before your first chemotherapy cycle or pelvic radiation session.
- If you are having prostate surgery, ask specifically whether a nerve-sparing approach is suitable for your case.
- Ask what sexual side effects your specific treatment is associated with and roughly when they are expected to start.
- Ask about penile rehabilitation — some options are more effective when started early rather than months after treatment ends.
- Consider including your partner in this conversation. Many couples find it helps to hear the information together.
Meet the Specialists
17+ senior cancer specialists. One panel for your case.
Trained at AIIMS, Tata Memorial, and leading international centres. Combined 150+ years of experience. Every complex case is reviewed by 3+ of them — together.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Surgical Oncologist
Surgical Oncologist
Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
Surgical Oncologist
Radiation Oncologist
Radiation Oncologist
Radiation Oncologist
Hematologist
Interventional Radiologist
Dr. Mohammed Imran
Surgical Oncologist
Dr. Vajja Sandeep Kumar
MBBS, MS (General Surgery), DrNB (Surgical Oncology), FALS Oncology
Surgical Oncologist
Want a specific doctor for your case? Mention them when booking.
Book Free ConsultationBook an appointment with our specialist
Share your name and number — we'll call you back within 30 minutes to schedule your consultation.
Get a straight answer from a specialist
45 minutes, your reports reviewed, your questions answered in plain language.
What can you do about erectile dysfunction during and after treatment?
Speak to your oncology team or ask for a referral to a urologist or sexual health specialist. Medical options — including medications and devices — are available to many men. None of them should be self-prescribed during active cancer treatment without your team's guidance.
NCCN guidance notes that penile rehabilitation started early after surgery or radiation is associated with better long-term outcomes than waiting until problems become established. Raise it at your first post-treatment review rather than assuming it is too late.
Psychological support matters alongside physical treatment. Sexual changes affect self-esteem and close relationships. A counsellor experienced in cancer survivorship can help, and a referral is something your treating team can arrange.
Did you know?
Sexual dysfunction is one of the most common and most underreported side effects of cancer treatment in men. Most men do not raise it with their oncologist — and most oncologists do not ask unless prompted.
Raising it is the step that opens the options.
Source: ASCO Patient Resources: Sexual Health and Cancer
Questions men ask when no one is in the room
Can I have sex during chemotherapy or radiation?
For most men, sex during treatment is possible and not medically harmful. The main considerations are fatigue — which is real and should guide what feels right — and, during chemotherapy, a brief period when your team may advise using a condom to protect a partner from trace amounts of drug in body fluids. Ask your oncologist whether this applies to your specific regimen. There is no single rule that covers every treatment. If you want to and feel well enough, this is a question worth raising directly with your team rather than guessing.
Will my partner be exposed to chemotherapy through sex?
Some chemotherapy drugs are present in small amounts in body fluids, including semen, for a short period after each dose. Your oncologist can tell you whether your specific drugs carry this consideration and for how long. When it applies, using a condom during that window is the straightforward precaution. This is a legitimate and common question — your team has heard it before and will give you a direct answer for your specific regimen rather than a general one.
My oncologist has not mentioned sexual health — should I bring it up?
Yes. Sexual health is consistently underaddressed in cancer consultations — not because it is unimportant, but because most clinicians wait for the patient to raise it. If you are experiencing changes or want to know what to expect, you are entirely entitled to bring it up. You can also ask for a referral to a urologist or sexual health specialist if your oncologist cannot address it in detail. The words do not need to be clinical: telling your team how treatment is affecting your sex life is specific enough to open the conversation and move it forward.
What if erectile dysfunction does not improve after treatment ends?
Recovery timelines vary significantly by treatment type and by individual. After prostate surgery, NCCN guidance indicates that meaningful recovery, where it occurs, typically takes 12 to 24 months — and is more likely following a nerve-sparing technique. After hormonal therapy, improvement typically begins months after stopping but is not guaranteed to be complete. If you are past the expected recovery window and function has not improved, ask for a referral to a urologist who specialises in post-cancer sexual rehabilitation. Specialist options exist beyond what a general oncology team typically offers.
Is it possible to know in advance how badly I will be affected?
To some degree, yes. For prostate surgery, your surgeon can explain whether a nerve-sparing approach is technically possible in your case — that is the single most important factor for long-term recovery. For hormonal therapy, the effect on libido and erections is very consistent across most men, though the degree varies between individuals. What cannot be predicted precisely is how quickly or completely any particular person recovers. Asking your surgeon or oncologist for their honest assessment of your specific case, rather than a population-level figure, will give you more useful information.
Explore 113 more Family, Fertility, Diet & Emotional Wellbeing topics
Fertility, Pregnancy & Sexual Health
- Accidental Pregnancy While on Targeted Therapy: What Now?
- Can You Breastfeed While on Targeted Therapy?
- Cancer Diagnosed During Pregnancy: Can Targeted Therapy Be Used?
- Contraception on Targeted Therapy: Which Methods Are Safe?
- Early Menopause Caused by Cancer Treatment
- Erectile Dysfunction and Sexual Changes in Men on Treatment
- Fertility After Long-Term Targeted Therapy: What the Data Shows
- Fertility Preservation Before Starting Treatment: Your Options and Timeline
- How Long Must You Wait Before Trying to Conceive?
- Sperm Banking Before Cancer Treatment: A Practical Guide
- Talking to Your Partner About Sex During Cancer Treatment
- Vaginal Dryness, Pain and Low Libido During Treatment
- Will Targeted Therapy Affect My Fertility?
Caregiver Enablement
- Building a Care Roster When One Person Can't Do It All
- Caregiver Burnout: Recognising It Before It Breaks You
- Caregiver Red Flag Chart: When to Take Them to Hospital
- Caring for an Elderly Parent on Oral Cancer Tablets
- Cooking for Someone on Targeted Therapy: A Kitchen Guide
- Coordinating Care From Abroad: A Guide for NRI Families
- Financial Management for Caregivers: Bills, Claims and Records
- How to Get a Second Opinion Without Offending Your Doctor
- How to Track Side Effects: A Simple Daily Diary System
- Managing Medicines, Refills and Pharmacy Runs
- Questions Every Caregiver Should Ask at the Oncology Visit
- Supporting Someone Emotionally Without Saying the Wrong Thing
- The Complete Caregiver's Guide to Targeted Therapy
- What to Do When the Patient Refuses to Take Their Medicine
Diet, Nutrition & Complementary Therapy
- Ayurveda Alongside Targeted Therapy: An Honest Assessment
- Do Immunity Boosters Help During Cancer Treatment?
- Does Sugar Feed Cancer? Separating Myth From Fact
- Eating With Mouth Sores: Foods That Don't Hurt
- Eating to Control High Blood Sugar From Cancer Drugs
- Food Safety and Hygiene for Cancer Patients at Home
- Foods to Avoid on Targeted Therapy
- How Much Protein Does a Cancer Patient Actually Need?
- Hydration: How Much Water and What Counts
- Is Cow's Milk, Soya or Non-Veg Food Safe During Cancer Treatment?
- Keto and Intermittent Fasting During Cancer Treatment: Is It Safe?
- Managing Weight Loss and Muscle Wasting
- What Should You Eat While on Targeted Therapy? A Practical Indian Diet Guide
- What to Eat When You Have Diarrhoea From Cancer Tablets
- Yoga and Pranayama During Cancer Treatment
Genetic Predisposition & Family Risk
- BRCA Testing in India: Cost, Process and Where to Get It Done
- Cascade Testing: Getting Your Family Members Tested
- Coping With the Anxiety of a Positive Genetic Test
- Does a BRCA Mutation Mean You Will Definitely Get Cancer?
- Family History of Cancer: Should You Get Genetic Testing?
- Genetic Counselling: What Actually Happens in the Session
- Hereditary Diffuse Gastric Cancer and the CDH1 Gene
- How to Tell Your Children and Siblings About a Genetic Risk
- I'm BRCA Positive but Have No Cancer: What Happens Now?
- IVF and Preimplantation Testing to Avoid Passing On a Mutation
- Li-Fraumeni Syndrome: Living With a TP53 Mutation
- Lynch Syndrome: Cancers, Screening and Treatment Implications
- MEN2, VHL and Other Endocrine Cancer Syndromes
- MUTYH, PALB2, ATM and CHEK2: Moderate-Risk Genes Explained
- Male BRCA Carriers: The Risks Nobody Talks About
- PARP Inhibitors: How a Genetic Mutation Becomes a Treatment Advantage
- Risk-Reducing Mastectomy: How to Decide
- Risk-Reducing Ovary and Tube Removal: Timing and Consequences
- Somatic Mutation Found on NGS: Could It Be Inherited?
- Surveillance Instead of Surgery: What Screening Looks Like
- Which Family Histories Actually Suggest a Hereditary Cancer Syndrome?
- Will a Genetic Test Result Affect Your Insurance in India?
Mental Health & Emotional Wellbeing
- Body Image When Your Skin, Nails and Hair Change
- Cancer Support Groups in India: How to Find One
- Depression During Long-Term Cancer Treatment
- Handling Unhelpful Advice and Toxic Positivity
- Living With Cancer as a Chronic Disease: A New Identity
- Sleep, Anxiety and Night-Time Fear During Treatment
- Talking to Your Children About Your Cancer Diagnosis
- Telling Friends, Relatives and Neighbours: How Much to Share
- The Fear That the Drug Will Stop Working: How to Live With It
- When Should You See a Psycho-Oncologist?
Myths, Misinformation & Verification
- Are Generic Cancer Drugs Fake or Weaker?
- Can Cancer Be Cured Without Any Modern Medicine?
- Cannabis and CBD Oil for Cancer: What the Evidence Actually Says
- Does Soursop, Apricot Seed or Alkaline Water Cure Cancer?
- Does a Biopsy Spread Cancer?
- How to Fact-Check Cancer Information You Read Online or From AI
- Miracle Cancer Cures on WhatsApp and YouTube: How to Spot a Fake
- Myth: Cancer Treatment Is Worse Than the Disease
- Myth: If the Scan Is Clear You Can Stop the Tablets
- Myth: Positive Thinking Cures Cancer
- Myth: Sugar, Milk or Non-Veg Food Feeds Cancer
- Myth: Targeted Therapy Has No Side Effects
- Myth: Targeted Therapy Is Only for the Rich
Palliative Care & End of Life
- Breathlessness and Comfort Care in Advanced Cancer
- Hospice and Home Palliative Care Services in India
- How to Have a Goals-of-Care Conversation With Your Doctor
- Pain Control at Home: What's Possible and What to Ask For
- Palliative Care Is Not Giving Up: Clearing the Biggest Myth
- Should You Ask How Long You Have Left?
- Supporting a Family Member in Their Last Months
- What 'Best Supportive Care' Actually Means
- When Is It Right to Stop Cancer Treatment?
Special Populations & Comorbidities
- Cancer Treatment After an Organ Transplant
- Cancer Treatment for Patients on Dialysis
- Cancer Treatment in Patients With Past or Active Tuberculosis
- Growth, Puberty and School During Childhood Cancer Treatment
- Hepatitis B and C Reactivation Risk During Cancer Treatment
- Managing Diabetes While on Targeted Therapy
- Obesity, Underweight and Dosing: Does Body Size Change the Dose?
- Paediatric Targeted Therapy: What Parents Need to Know
- Targeted Therapy With Autoimmune Disease
- Targeted Therapy With Chronic Kidney Disease
- Targeted Therapy With Existing Heart Disease
- Targeted Therapy With Liver Disease or Cirrhosis
- Targeted Therapy for Adolescents and Young Adults
- Targeted Therapy for Patients With Mental Illness or Dementia
- Targeted Therapy in HIV-Positive Patients
- Targeted Therapy in Patients Over 75: Is It Worth It?
- Treating Patients With Poor Performance Status
Next step
Still not sure what applies to you?
Send your reports across and a senior medical oncologist will go through what they mean, what is known, and what the options actually are.
Common questions
Frequently asked questions
Will erectile dysfunction from cancer treatment go away on its own?
It depends on which treatment caused it. Changes from chemotherapy often improve after treatment ends. Changes from hormonal therapy often improve months after stopping, though the timeline varies. After prostate surgery, recovery depends on whether nerve-sparing was possible — and even then, meaningful recovery can take 12 to 24 months, according to NCCN guidance. After radiation, improvement tends to be partial rather than complete. Waiting quietly is not the most effective approach: penile rehabilitation started early is consistently associated with better long-term outcomes than waiting for spontaneous recovery.
Can I bank sperm after chemotherapy has already started?
It is technically possible in some cases, but the quality and number of viable sperm may already be affected. The reliable window is before your first treatment cycle. If treatment has already started and you are concerned about fertility, ask for an urgent referral to a fertility specialist — they can assess what is still feasible for your specific situation. Do not assume the opportunity has fully passed without a specialist's assessment first.
How long does it take for erections to recover after prostate surgery?
Recovery after prostate surgery is gradual, not sudden. NCCN guidance indicates that meaningful recovery, where it occurs, typically takes 12 to 24 months, and is more likely following a nerve-sparing technique. Younger men and those with better baseline function before surgery tend to recover more fully. Penile rehabilitation begun early after surgery is associated with better long-term outcomes. If you are six months post-surgery and have seen no change at all, raise it with your oncologist or ask for a urology referral.
My libido has disappeared since starting hormonal therapy — is this permanent?
Reduced libido is a very consistent effect of hormonal therapy, and it affects most men who take it. For the majority, libido does begin to return months after stopping treatment, but the timing varies and recovery is not always complete. If your treatment is ongoing and this is significantly affecting your quality of life, tell your oncologist — there are sometimes ways to manage the impact without stopping a necessary treatment. Telling them how much it is affecting you is the starting point for that conversation.
Are medications like sildenafil safe to take during cancer treatment?
Possibly, but not without your oncology team's guidance. Some medications interact with chemotherapy drugs or affect how the body handles treatment. Your oncologist needs to know everything you are taking — prescribed or bought over the counter. If you want to explore this option, ask directly whether a particular medication is safe alongside your current treatment regimen. They can answer for your specific situation rather than you relying on general advice that may not apply.
Does having erectile dysfunction mean the cancer is getting worse?
No. Erectile dysfunction during or after cancer treatment is almost always a side effect of the treatment itself, not a sign that the cancer is progressing. Surgery, radiation, and hormonal therapy all cause changes to the nerves, blood vessels, and hormones that control erections, regardless of how the cancer is responding to treatment. If you have new symptoms that worry you for other reasons, mention them to your team — but erectile dysfunction alone is not a warning sign about the cancer.