Period cramps are caused by natural chemicals called prostaglandins, which build up in the uterine lining and force the muscles and blood vessels of the uterus to contract. Prostaglandin levels are highest on the first day of your period, which is why day one is usually the worst. As bleeding continues and the lining sheds, levels drop and the pain eases. The goal of every remedy on this list is the same: reduce prostaglandin activity, relax the uterine muscle, or both.
Take Pain Relievers Before Cramps Start
Anti-inflammatory pain relievers like ibuprofen and naproxen work by blocking the enzymes that produce prostaglandins. The key detail most people miss is timing: you should take the first dose as soon as bleeding begins, or even the day before if you can predict your cycle. Waiting until pain peaks means prostaglandins have already flooded the tissue and you’re playing catch-up.
For ibuprofen, a standard approach is 400 mg (two tablets) three times a day with food for about three days. If you weigh over 100 pounds, a loading dose of 600 mg (three tablets) for the very first dose can help you get ahead of the pain. Naproxen lasts longer per dose, so one 220 mg tablet every eight hours works for most people, with a first dose of 440 mg. Always take either one with food to protect your stomach.
Use Heat Therapy
A heating pad on your lower abdomen is not just comforting. A 2025 systematic review in Frontiers in Medicine pooled data from 22 randomized trials and found that heat therapy and anti-inflammatory painkillers were comparable in pain relief over a three-month period. Within a 24-hour window, the two performed similarly as well. The real advantage of heat: it carried roughly 70% fewer side effects than oral painkillers across eight trials with over 700 participants.
You can use a plug-in heating pad, a microwavable grain bag, or adhesive heat patches that stick under your clothes and stay warm for hours. Aim for a comfortable warmth rather than high heat, and keep a layer of fabric between the pad and your skin to avoid burns. A warm bath works on the same principle, relaxing the uterine muscle and increasing blood flow to the pelvis.
Try Gentle Movement and Yoga
Exercise might be the last thing you want during cramps, but gentle movement increases pelvic blood flow and encourages your body to release its own pain-relieving chemicals. You don’t need anything intense. A 20-minute walk, light cycling, or swimming can make a noticeable difference.
Specific yoga poses target the muscles around the uterus and lower back. Two that are well-suited for period pain:
- Cat/Cow: Start on your hands and knees. Drop your chin to your chest, round your back, and tuck your hips. Then reverse the motion, letting your belly drop and lifting your head. Repeat 5 to 10 times. This rhythmically stretches the lower back and pelvis.
- Cobra: Lie face down with legs hip-width apart. Place your hands under your shoulders, keep your elbows close to your body, and push up until your arms are straight. Lift through your chest and the top of your head. This opens the front of the pelvis and relieves tension in the lower abdomen.
Doing these after a walk or warm bath helps, since muscles stretch more easily when they’re already warm.
Adjust What You Eat
Your diet influences the raw materials your body uses to make prostaglandins. Omega-6 fatty acids, found in high amounts in processed vegetable oils and many packaged foods, are precursors to arachidonic acid, the molecule your body converts into the specific prostaglandins that cause uterine contraction and pain. Omega-3 fatty acids (from fatty fish, walnuts, flaxseed, and fish oil supplements) compete with arachidonic acid in your cell membranes. When more omega-3 is available, your body shifts toward producing anti-inflammatory prostaglandins and fewer of the pain-causing ones.
This isn’t an overnight fix. Increasing your omega-3 intake consistently over several weeks changes the fatty acid composition of your cell membranes, so the benefit builds over time. If you rarely eat fish, a fish oil supplement providing EPA and DHA is a reasonable option.
Consider Magnesium Supplements
Magnesium helps regulate muscle contraction, and some research suggests that people with more painful periods tend to have lower magnesium levels. Small clinical trials have used 150 to 300 mg of magnesium per day and found meaningful reductions in menstrual pain. Starting at the lower end (around 150 mg) minimizes the chance of digestive side effects like loose stools. One study paired 250 mg of magnesium with 40 mg of vitamin B6 and found the combination effective, so these two may work better together than alone.
Magnesium glycinate and magnesium citrate are the forms most commonly recommended for cramps, as they absorb well and are gentler on the stomach than magnesium oxide. Like omega-3s, magnesium works best as a daily habit rather than something you reach for once pain has already started.
Try a TENS Unit
A TENS (transcutaneous electrical nerve stimulation) unit is a small, battery-powered device that sends mild electrical pulses through pads stuck to your skin. The pulses interfere with pain signals traveling to your brain and can trigger your body’s own pain relief response. For period cramps, you place the electrode pads on your lower abdomen or lower back.
The frequency setting matters. Clinical evidence shows that high-frequency TENS (50 to 120 pulses per second) reliably outperforms a placebo for menstrual pain. Low-frequency TENS (1 to 4 pulses per second) does not appear to be more effective than a placebo, so if you’re purchasing a unit, make sure it reaches the higher range. TENS units are widely available over the counter and can be used alongside heat or pain relievers.
Signs Your Cramps Need Medical Attention
Normal period cramps are uncomfortable but tolerable. They shouldn’t force you to miss work, school, or daily activities on a regular basis. If your pain has been getting worse over time rather than staying predictable, that pattern is worth paying attention to. Conditions like endometriosis and uterine fibroids cause what’s called secondary dysmenorrhea, meaning the pain has an underlying structural cause that standard remedies won’t fully address.
Red flags that point toward something beyond typical cramps include pain that extends well before or after your period, pain during sex, pain with bowel movements or urination, persistent lower back or abdominal pain outside of menstruation, and difficulty getting pregnant. Fatigue, bloating, constipation, and nausea that intensify during your period can also be part of the picture. If any of these sound familiar, a provider can use a pelvic exam and imaging to evaluate what’s going on and help you find a more targeted solution.