Pain during a bowel movement is almost always caused by something treatable, and in most cases you can get relief at home within days. The most common culprits are anal fissures (small tears in the skin around the anus), hemorrhoids, and hard stool from constipation. Less often, the pain signals an inflammatory condition that needs medical attention. Here’s how to figure out what’s going on and what to do about it.
Why It Hurts: The Most Likely Causes
Sharp, stinging pain during or after a bowel movement usually points to an anal fissure. These are tiny tears in the lining of the anal canal, often caused by passing a large or hard stool. The pain can be intense, sometimes lasting minutes to hours afterward, and you may notice a small amount of bright red blood on the toilet paper.
Hemorrhoids, which are swollen blood vessels in or around the anus, tend to cause more of a dull ache, pressure, or itching. External hemorrhoids sit near the opening and can become especially painful if a blood clot forms inside them. Internal hemorrhoids are higher up and usually cause painless bleeding, though they can prolapse (bulge outward) and become uncomfortable.
Constipation itself is a major driver. When stool sits in the colon too long, it dries out and hardens. Straining to pass it puts pressure on the anal canal and can cause both fissures and hemorrhoids, creating a cycle where pain makes you clench or avoid going, which makes constipation worse.
Other possible causes include abscesses (infected pockets of pus near the anus), colon polyps, and inflammatory conditions like Crohn’s disease, ulcerative colitis, or proctitis (inflammation of the rectal lining). Proctitis often comes with additional symptoms: a constant urge to have a bowel movement even when your bowel is empty, mucus or pus in the stool, cramping on the left side of the abdomen, and diarrhea.
How to Get Relief Right Now
A sitz bath is one of the fastest ways to ease pain and promote healing. Fill a bathtub or basin with a few inches of warm water, around 104°F (40°C), and soak your anal area for 15 to 20 minutes. You can do this three to four times a day when symptoms are active. The warm water relaxes the muscles around the anus, increases blood flow, and helps clean the area gently. Pat dry with a soft towel afterward rather than rubbing.
For hemorrhoid pain and itching, over-the-counter creams or suppositories containing hydrocortisone can help, as can pads soaked in witch hazel or a numbing agent like lidocaine. One important note: hydrocortisone can thin the skin if used for more than a week, so keep it short-term.
If you suspect a fissure, a topical anesthetic cream with lidocaine can take the edge off. Most acute fissures heal within a few weeks with home care, primarily by keeping your stool soft so the tear isn’t re-injured every time you go.
Soften Your Stool to Break the Cycle
Hard stool is the root of the problem in most cases. Softening it reduces pain immediately and prevents re-injury. You have two main tools here: fiber and water.
The daily fiber goal for most adults is 25 to 34 grams, depending on age and sex. Men aged 19 to 30 need about 34 grams, while women in the same range need about 28 grams. Those needs decrease slightly with age. Most people fall well short. Good sources include beans, lentils, oats, berries, broccoli, and whole grains. If you can’t hit your target through food alone, a fiber supplement like psyllium husk can help. Start with a lower dose (around 3 teaspoons per day) for the first month, especially if you have a fissure, since too much bulk too fast can temporarily worsen symptoms. Take fiber supplements with plenty of water, at least 500 mL (about 2 cups) per dose. Without enough water, fiber can actually make constipation worse.
A stool softener like docusate sodium works by pulling water into the stool, making it easier to pass without straining. It’s a good option when you have hemorrhoids, a fissure, or are recovering from surgery. Stimulant laxatives like senna or bisacodyl are stronger and work faster by triggering the intestinal muscles to contract, but they can cause cramping. They’re best reserved for more severe constipation and shouldn’t be used regularly, since your body can build up a tolerance over time.
Change How You Sit on the Toilet
Your posture on the toilet matters more than you might think. When you sit upright on a standard toilet, a muscle called the puborectalis wraps around the rectum like a sling, creating a kink that makes evacuation harder. Raising your knees above your hips straightens that angle and lets stool pass with less straining.
Place a small footstool (6 to 9 inches tall) under your feet. Keep your feet hip-width apart on the stool, lean forward slightly, and rest your elbows on your knees. Make sure your heels stay flat on the stool. Lifting your heels actually tightens the pelvic floor muscles and works against you. This supported squat position reduces the need to push, which protects fissures and hemorrhoids from further irritation.
When the Pain Comes With Warning Signs
Most painful bowel movements respond to home care within a couple of weeks. But certain symptoms suggest something beyond a simple fissure or hemorrhoid:
- Rectal bleeding that doesn’t stop or is more than a few drops on the tissue
- Blood mixed into the stool rather than just on the surface
- Mucus or pus coming from the rectum
- Unexplained weight loss
- Severe abdominal pain or cramping
- Diarrhea at night that wakes you up
- Pain that persists despite soft stools and home treatment for several weeks
These can point to inflammatory bowel disease, proctitis, or other conditions that require evaluation. Passing blood, mucus, or pus from the rectum with severe abdominal pain warrants prompt medical attention.
What Happens if a Fissure Doesn’t Heal
Most fissures heal within a few weeks when you keep your stool soft and avoid straining. When they don’t, the tear can become chronic. At that point, a doctor may prescribe a topical ointment that relaxes the anal sphincter muscle and improves blood flow to the area, helping the tissue repair itself. If that doesn’t work, other options include injections to temporarily relax the sphincter muscle or, in persistent cases, a minor surgical procedure.
For hemorrhoids that don’t respond to over-the-counter treatment, minimally invasive procedures can shrink or remove them. These are typically quick, done in a clinic setting, and recovery is measured in days rather than weeks. A painful blood clot in an external hemorrhoid can be drained in an office visit if caught early.
Habits That Prevent the Problem From Coming Back
Once the acute pain resolves, prevention is about keeping stool soft and your bowel habits regular. Aim for your daily fiber target through a mix of food and supplements if needed. Drink enough water throughout the day, especially when increasing fiber intake. Physical activity also helps keep things moving through the digestive tract.
Avoid sitting on the toilet for extended periods. Reading or scrolling on your phone prolongs the time you spend with increased pressure on the anal area. Go when you feel the urge rather than delaying, and stop if nothing is happening after a few minutes. Don’t strain or bear down forcefully. If stool isn’t coming easily, get up, move around, drink some water, and try again later. Over time, these habits keep the tissues around your anus healthy and reduce the chance of fissures, hemorrhoids, and pain returning.