Medical Oncologist
CION Cancer Clinics
Red flags after discharge: when to come back today | CION Cancer Clinics
Come back the same day if you have a fever or shivering, breathlessness, chest pain, bleeding that will not stop, a swollen painful calf, repeated vomiting or pain that keeps getting worse. These can be early signs of infection, a clot, a leak or bleeding. This page lists the red flags sign by sign, what to do when one appears, and when to call an ambulance instead. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
MI
Medically reviewed by Dr. Mohammed ImaduddinConsultant Surgical Oncologist · MBBS, MS (General Surgery), MCh (Surgical Oncology) · last reviewed September 2026, next review due September 2027
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On this page
- Which signs after discharge mean you should come back today?
- What are the red flags, sign by sign?
- Should you come back today, or call the team first?
- What should you do when a red flag appears?
- Why do families wait too long to come back?
- What can this page not tell you?
- Common questions about warning signs after discharge
The short answer
Which signs after discharge mean you should come back today?
Come back the same day if you have a fever or shivering, trouble breathing, chest pain, bleeding that will not stop, a swollen painful calf, repeated vomiting, or pain that is getting worse instead of better. These can be the first signs of an infection, a clot, a leak or bleeding, and each is much easier to treat when it is caught early.
Why the first weeks at home matter
Hospital stays after cancer surgery are shorter than they used to be. That is good for recovery, but it means some problems show only once you are home. The team cannot see you there. You and your family become the people who notice first.
Trust the change, not the list
No list covers everything. If the person looks worse today than yesterday, is eating and drinking less, is unusually sleepy or confused, or simply does not seem themselves, treat that as a warning sign too. Family members often notice this before the patient does.
Keep the discharge sheet and the hospital number on the fridge or in a phone photo, so anyone at home can find them quickly.
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Call an ambulance, do not wait for a callback
Dial 108 or go straight to the nearest emergency department if the person is struggling to breathe, has chest pain, is coughing up blood, is bleeding heavily, has fainted, is very confused or cannot be woken properly. Tell the emergency team what operation was done and when, and bring the discharge summary. Do not drive a long distance to the operating hospital first if a closer emergency department can see you sooner.
Not sure whether this applies to you?
Ask an oncologistWhat to look for
What are the red flags, sign by sign?
Each of these can have a harmless explanation. Each also needs to be checked the same day, because it can point to a problem that gets worse quickly.
Fever or shivering
A high temperature, hot and cold sweats or uncontrolled shaking can mean an infection in the wound, chest, urine or inside the abdomen.
The wound
Spreading redness, heat, a bad smell, pus, or the edges coming apart all need to be seen.
Breathing and the chest
New breathlessness, a fast heartbeat, chest pain or coughing up coloured phlegm can mean a chest infection or a clot in the lung.
One leg swollen
A calf that is swollen, warm, red or painful, especially on one side only, can be a blood clot.
Belly pain and vomiting
Pain that keeps rising, a hard swollen belly, repeated vomiting, or no wind or stool can mean a blocked or leaking bowel.
Bleeding
Blood soaking through a dressing, black or bloody stools, blood in vomit or urine, or feeling faint and pale.
Urine
Not passing urine for many hours, severe burning, or very little dark urine despite drinking.
Confusion or drowsiness
A new muddle, unusual sleepiness or agitation, especially in an older person, can be an early sign of infection.
How urgent
Should you come back today, or call the team first?
Come back or go to emergency today
Call the team for advice soon
Fever with shivering, or feeling very unwell
Mild warmth around the wound with no fever
A wound that has opened or is pouring fluid
A small amount of clear ooze on the dressing
Repeated vomiting and unable to keep fluids down
Poor appetite but drinking well
Pain that is rising despite your pain medicines
Pain that is steady and slowly easing
A drain that suddenly fills with blood, or looks like stool
A drain output that changes gradually in amount
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When a sign appears
What should you do when a red flag appears?
Check and note it down
Take the temperature if you have a thermometer. Note when the sign started, whether it is getting worse, and what the person has eaten, drunk and passed today. A photo of the wound helps.
Call the number on the discharge sheet
Say the operation, the date of surgery and the sign that worries you. If nobody answers quickly and the person is getting worse, do not keep waiting. Go to the nearest emergency department.
Gather what to bring
Take the discharge summary, the operation note if you have it, every medicine in its box, and any recent reports. The emergency doctor needs to know exactly what was done.
Do not treat it at home first
Do not start leftover antibiotics, change your medicines or wait to see if a home remedy works. That can hide the sign and delay the right treatment.
Commonly believed
Why do families wait too long to come back?
"We do not want to trouble the doctor for something small."
Surgical teams would much rather see a problem early and find it was nothing than see it late. A call that turns out to be a false alarm costs nobody anything.
"A little fever after an operation is normal, so we can wait till morning."
A mild temperature in the first day in hospital is common. A fever that starts after you are home is different. It needs to be checked the same day, not the next morning.
"The hospital is far away, so there is no point going anywhere else."
For an emergency, the nearest emergency department is the right place to start. It can stabilise the person and speak to the operating team. Travel for hours only when the team tells you it is safe to.
"If they were really ill, they would be complaining more."
Older people and people on strong painkillers often complain less. Quietness, confusion and not eating can be the only signs. Go by what you see, not only by what they say.
Being straight with you
What can this page not tell you?
This page cannot tell you whether a particular sign is serious in your case. A symptom list is not a diagnosis. The same fever can be a minor urine infection or the first sign of a leak, and only an examination, blood tests and sometimes a scan can tell them apart.
Your operation has its own warning signs
After a stoma, a neck operation, a breast operation or surgery on the food pipe, there are extra signs to watch for. Your discharge sheet should list them. If it does not, ask the ward nurse to write them down before you leave.
If you live far from the hospital
Before discharge, find out which emergency department is nearest to your home, and whether it is open at night. Ask the team whether they can speak to a local doctor by phone if you need to be seen there. Plan this before you need it, not at midnight.
Questions we are asked
Common questions about warning signs after discharge
How long after surgery should we keep watching for warning signs?
Most complications that appear at home show in the first few weeks. Blood clots and wound infections can appear a little later. Keep watching until your follow-up appointment, and after that whenever something new or worrying develops. Ask the team how long the warning signs on your sheet apply to your operation.
Is some pain at home normal?
Yes. Pain should be steady and slowly easing, and controlled by the medicines you were given. Pain that suddenly becomes worse, spreads, or no longer responds to those medicines is a warning sign. So is new pain in the chest, the calf or across the whole belly. Call the team the same day.
Can we go to a local hospital instead of the one that did the surgery?
For an emergency, yes. The nearest emergency department should see you first. Bring the discharge summary and ask them to contact the operating team. For problems that are not urgent, calling the operating team is usually better, because they know exactly what was done.
What if the wound looks a little red?
A thin pink line along the edges is common while a wound heals. Redness that spreads outwards, feels hot, is getting more painful or comes with pus or a fever needs to be seen the same day. Taking a photo each morning helps you and the team see whether it is changing.
The drain or catheter has come out by accident. What do we do?
Cover the area with a clean dressing and call the team. Do not try to push it back in. If there is heavy bleeding, pain, or the person cannot pass urine after a catheter has come out, go to the nearest emergency department. Bring the tube with you if you can.
Should we give paracetamol for a fever before calling?
Call the team first. Paracetamol can lower a temperature and hide how unwell the person really is. If it has already been taken as part of the pain medicines you were given, tell the team when the last one was taken. Do not add or change medicines on your own.
They are eating very little since coming home. Is that a red flag?
A poor appetite is common in the first weeks. It becomes a warning sign when the person cannot keep fluids down, is passing very little urine, is vomiting, or is getting weaker by the day. Those need the team the same day. A slowly improving appetite is usually fine.
Will coming back mean another operation?
Usually not. Many problems are treated with antibiotics, fluids, a scan-guided drain or simple wound care. A second operation is sometimes needed, and it is far more likely to go well when the problem is caught early. Coming back promptly is how you keep the options simple.
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Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
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Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
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Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
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MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
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Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
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Dr. Vajja Sandeep Kumar
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Sources
- NHS — Sepsis
- NHS — Deep vein thrombosis (DVT)
- American Cancer Society — Cancer surgery
- Cancer.Net — What to expect when having surgery
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
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