Blood when I go to the toilet
See a doctor about this one
See a doctor about this one. It is a symptom that needs a cause found, and no remedy on this site is a substitute for that.
You look in the bowl and see red. Or you wipe and there is blood on the paper. It is a scary thing to see.
Blood at the toilet is common, and most causes are not cancer. But it always has a cause, and the cause matters. The right next step depends on which one you have.
The pattern is your best clue. Bright red drips that sit on top of the stool point one way. Blood mixed all through loose stool, with slime and a sudden rush to go, points another way.
That second pattern is the one linked to ulcerative colitis, which is what this page sits under. Ulcerative colitis is long-term swelling and sores in the lining of the large bowel.
When to see someone
Some bleeding needs help right now. Go to the emergency room if you pass a lot of blood or clots. Go if your stool is black, sticky and tar-like.
Go now if you feel faint, dizzy or very pale. Go now if your heart is racing. These can mean you are losing blood fast.
Call your doctor the same day for a fever plus blood and belly pain. Call the same day if you have more than six loose, bloody stools in one day. Call if your belly is swollen and very sore.
Book a visit for any new bleeding, even one small streak. Do this even if you are sure it is piles. Blood always has a cause, and only a check can find it.
Ask to be seen soon if you are over 40 and your bowel habit has changed. Do the same if you lost weight without trying. Do the same if you feel worn out or look pale.
If you already have ulcerative colitis, tell your team when a flare starts. Do not wait for your next routine visit.
Why it happens
In ulcerative colitis, the lining of the large bowel gets red, swollen and raw. Tiny open sores form on it. Those sores ooze blood and mucus into the stool.
The swollen lining also cannot hold water well. So stools turn loose and come often. The bowel squeezes hard, which gives you that urgent, cannot-wait feeling.
Bleeding often starts in the rectum, the last part of the bowel. When only that part is sore, it is called proctitis. You may pass blood and slime with very little stool at all.
Colitis bleeding tends to come and go in flares. Weeks of calm can be followed by weeks of blood, urgency and cramps.
What else it could be
Piles (haemorrhoids) are swollen veins near the back passage. The blood is bright red.
It drips into the bowl or streaks the outside of the stool, and it usually does not hurt much. Itching and a soft lump are common.
An anal fissure is a small tear in the skin at the opening. It gives a sharp, burning pain when you go, and the sting can last for an hour after.
The blood is a small bright streak on the paper. Hard stools and straining usually cause it.
Ulcerative colitis and Crohn's disease are different. The blood is mixed through the stool, not just on it.
You also get slime, loose stools many times a day, cramps, and a need to rush. Being woken at night to go is a strong clue that this is more than piles.
A gut infection can also cause bloody stool. It comes on fast, often with fever, vomiting or cramps. Think about recent travel, undercooked meat, or other people who got sick too.
Diverticular bleeding is a sudden gush of a lot of dark or bright red blood, with little or no pain. It is more common after age 50. It needs same-day care.
Polyps and bowel cancer can bleed too, often with little blood you can see. Warning signs are a change in your usual bowel habit, weight loss you did not plan, and feeling tired or pale. New bleeding after age 40 always needs a check.
Black, sticky, tar-like stool is not the same thing. It means bleeding higher up, in the stomach or small bowel. That is an emergency.
One last check before you worry. Beetroot, red jelly and tomato soup can turn stool red. Iron tablets and some stomach medicines turn it black but not sticky.
How to read the grades below
The options below come from our page on Ulcerative Colitis. Each one carries two labels.
The first label is the evidence grade. A means strong trials in people, B means smaller or mixed studies, and C means early or limited findings. D means lab work only, and “insufficient” means the research cannot settle it yet.
The second label is the traditional tier. T3 means long use in more than one tradition, T2 means long use in one, and T1 means known use. T0 means no such record.
These grades come from research on Ulcerative Colitis, the parent Health Topic, not on blood when i go to the toilet.
A grade tells you how strong the research is, not how well something will work for you. Talk to a doctor or pharmacist before you start anything, above all if you take other medicines.
What to try first
Step one is a diagnosis, not a supplement. Piles, a tear, an infection and colitis all look like blood in the bowl, and they need different treatment. Guessing wrong wastes weeks.
While you wait for that visit, make stools easier to pass. Options here include drinking more water and eating more soft fibre such as oats and cooked veg; many people also find that not straining helps. Do not sit on the toilet reading your phone, as that alone swells the veins.
A warm shallow bath for ten minutes can ease the sting of a tear or piles. Keep the area clean and dry, and pat rather than rub.
Keep a simple diary. Write down how many stools a day, whether blood was mixed in or only on the paper, and any pain, fever or slime. This makes your appointment much more useful.
If ulcerative colitis is confirmed, the herbs and supplements below are ones people ask about. They are studied as add-ons alongside prescribed colitis medicine, not as swaps for it. Never stop a colitis drug to try one.
Curcumin (evidence grade A, traditional tier T0) is the best studied of this group in ulcerative colitis. It has been tested as an add-on to standard treatment.
Boswellia Serrata (evidence grade A, traditional tier T3) is a tree resin with both trial work behind it and a long history of traditional use for gut complaints.
Probiotics (evidence grade A, traditional tier T0) are live bacteria. Strains and doses differ a lot between products, so the one tested in a study may not match the one on the shop shelf.
Berberine (evidence grade A, traditional tier T0) is a plant compound. It can interact with several prescription drugs, so check with a pharmacist first.
Sodium Butyrate (evidence grade B, traditional tier T0) is a fatty acid that gut bacteria normally make from fibre. It is studied as a fuel for the bowel lining.
Bromelain (evidence grade B, traditional tier T0) comes from pineapple stems. It may thin the blood a little, which matters if you already bleed or take blood thinners.
Slippery Elm (Ulmus rubra) (evidence grade C, traditional tier T2) is a soothing inner bark. Here the backing is mostly long traditional use, with much less trial evidence than the others above.
Tell your doctor about anything you take. Some of these affect blood clotting or other drugs, and your team needs the full picture.
How long it takes
It depends on the cause, so this is a rough guide only. An anal fissure often settles in two to six weeks once stools are soft and you stop straining. Piles often calm down in one to two weeks with the same care.
Most gut infections clear in a few days to a week. If bloody stools last longer than a week, get checked again.
A colitis flare does not fix itself on a set clock. With prescribed treatment, bleeding often eases over days to a few weeks. Full healing of the lining takes longer, and your doctor may recheck it later.
Herbs and supplements are slow. Most trials in this area run eight to twelve weeks before judging the result. If you try one, give it a fair run and keep your diary.
Stop anything at once if bleeding gets worse after you start it. Then tell your doctor.
