In short. Drains and stitches are the two pieces of surgical hardware that cause most worry at home, and both have a clear purpose and a predictable course. A drain removes fluid so tissue layers can settle together, while sutures hold wound edges while the tissue underneath gains strength, and each has its own timetable for removal.
Key points
- A drain removes blood serum and tissue fluid so the tissue layers can settle together.
- Most drains come out when the daily volume has fallen to a level the team considers low enough.
- Removal is quick and only briefly uncomfortable.
- Non-dissolving sutures commonly come out between the fifth and fourteenth day.
- Dissolving sutures are absorbed over a few weeks to a few months.
What a drain does
After an operation, the space under the skin collects a mixture of blood serum and tissue fluid. Left to pool, that fluid increases swelling and pressure, separates the tissue layers that need to bond together, and gives bacteria somewhere to grow. A drain is a soft tube placed into that space and brought out through a separate small opening, connected to a bulb or a bottle that holds gentle suction. It removes the fluid so the layers can settle together.
Looking after a drain at home
Keep the bulb compressed, or the bottle below the level of the wound, so that fluid runs out rather than back in. Do not pull on the tubing, and secure it with a loop of tape so a sudden movement does not tug the entry point. Empty and record the container as often as your team advised, noting the volume and the colour, and keep that record for your review. The fluid usually starts red and thin, then becomes pink, then straw-coloured, and the volume falls day by day.
When does a drain come out?
Most drains are removed when the daily volume has fallen to a level your team considers low enough, usually within a few days. Removal is quick and only briefly uncomfortable. If a drain falls out early, or the tubing blocks and the suction fails, contact your team rather than trying to reinsert it.
Sutures that are removed
Non-dissolving sutures, staples or clips hold the wound edges together while the tissue underneath gains strength. They are removed at a time that depends on where the wound is and how much tension it carries, commonly somewhere between the fifth and the fourteenth day, and longer on the back or the scalp than on the face. Removal is not the end of healing: the wound has reached only a fraction of its final strength at that point, and it goes on strengthening for weeks afterwards.
Dissolving sutures
Dissolving sutures are absorbed by the body over a period ranging from a few weeks to a few months, depending on the material used. They do not need to be removed, but they are not invisible: you may notice small knots, a slight pulling sensation, or a stitch that works its way to the surface and can be seen or felt. This is common and usually settles on its own. If a stitch works loose and the wound edges stay together, nothing needs to be done. If the wound starts to open, that is a reason to be seen.
| Item | What it does | What is normal | When to seek advice |
|---|---|---|---|
| Drain | Removes blood serum and tissue fluid under the skin | Fluid starts red and thin, becomes pink, then straw-coloured, and volume falls | It stops draining suddenly, blocks or comes out early |
| Drain removal | Ends suction once the space has settled | Quick and only briefly uncomfortable, usually within a few days | The drain falls out before the team planned |
| Non-dissolving sutures | Hold wound edges while tissue gains strength | Removed between the fifth and fourteenth day, longer on back or scalp | A wound gaps or discharges pus after removal |
| Dissolving sutures | Are absorbed over weeks to months | Small knots, a pulling sensation or a stitch reaching the surface | The wound starts to open |
| Wound after suture removal | Continues strengthening for weeks | A fraction of final strength at removal | It opens, gaps or discharges pus |
| Fever, spreading redness or increasing pain | Signs of a problem along the stitch line | Not expected | Contact the team |
When should you contact your team?
- A drain stops draining suddenly, blocks, or comes out before your team planned to remove it.
- A wound opens, gaps, or discharges pus after sutures were removed.
- You develop a fever, spreading redness, or pain that increases along a stitch line.
What should you ask at discharge?
Ask at discharge which type of closure you have, when it is expected to be reviewed, and what you should do if something happens to it out of hours. That one conversation removes most of the uncertainty.
Sources
- World Health Organization: surgical safety guidance on wound care and drain management
- National Institute for Health and Care Excellence: guidance on surgical site infection prevention and management
- American Society of Plastic Surgeons: patient information on drains and suture aftercare
Internal links
Frequently asked questions
How do I look after a drain at home?
Keep the bulb compressed, or the bottle below the level of the wound, so fluid runs out rather than back in. Do not pull on the tubing, secure it with a loop of tape, and record the volume and colour as advised.
When are stitches removed?
It depends on where the wound is and how much tension it carries, commonly somewhere between the fifth and the fourteenth day, and longer on the back or scalp than on the face. Removal is not the end of healing.
What if a dissolving stitch works loose?
Dissolving sutures are absorbed over weeks to months. A small knot, a pulling sensation or a stitch working to the surface is common and usually settles. If a stitch works loose and the wound edges stay together, nothing needs to be done.
Risks & Limitations
- Recovery takes longer than most patients expect, and the final result of most operations is judged at six to twelve months, once swelling has settled and scars have matured.
- Some swelling, bruising, numbness and discomfort are a normal part of healing rather than a sign that something has gone wrong.
- Scars are permanent, though they mature and usually become softer and less noticeable over twelve to eighteen months.
- Rushing back to activity commonly causes setbacks and costs more time than it saves.
- The written instructions from your own discharging team override any general guidance here, including on dressings, medication, activity and follow-up.
When to Seek Care
- Severe or worsening pain, or a wound that opens or discharges.
- Spreading redness or warmth around the wound, or a fever.
- A swollen, painful calf; chest pain; or breathlessness — seek emergency care immediately.
- Heavy bleeding, or a dressing that is soaked through.
- A flap or graft that turns dark or cold.
- Do not wait for your next appointment for any of these. Contact your own clinical team, and if the problem is severe and you cannot reach them, go to an emergency department.
References & Further Reading
- World Health Organization (WHO) — surgical safety and patient safety resources
- National Institute for Health and Care Excellence (NICE, UK) — guidance on surgical site infection and recovery
- American Society of Plastic Surgeons (ASPS) — patient safety and aftercare guidance
This page is patient education, not medical advice, and it does not cite individual studies. It cannot replace the instructions given to you by the team that performed your operation. Discuss your own recovery with that team. To contact them, see Contact & Consultation.