If you’re looking into natural, budget-friendly ways to boost your chances of getting pregnant, you’ve probably come across the idea of castor oil. It’s been around for centuries and pops up frequently in holistic health circles. But let’s be real: there’s some debate about whether castor oil really helps with fertility or if it might even hinder it in certain cases. So here’s the full rundown on castor oil — where it comes from, what research says, and how you can use it for fertility — so you can decide if it’s worth a shot for you.

woman pouring castor oil into her hand

What is castor oil?

Castor oil is a vegetable oil derived from the seeds of the Ricinus communis plant. It’s been used across various cultures for centuries, with records showing its use by ancient Egyptians, Persians, and Chinese healers. While most people know about castor oil because of its laxative effect, some research also points to its anti-inflammatory properties and possible benefits for blood flow.

Holistic practitioners have long championed castor oil for wellness benefits ranging from skin health to digestive support. Today, many people also use it to potentially enhance fertility — especially through methods like castor oil packs and abdominal massage.

Does castor oil help with fertility?

The truth is, we still need more studies to say for sure whether castor oil truly impacts fertility. But there’s a growing set of research that suggests castor oil’s anti-inflammatory effects and ability to boost circulation might be handy if you’re trying to conceive. Since chronic inflammation and low blood flow can interfere with hormonal balance, castor oil’s potential to reduce inflammation and improve blood circulation may, in theory, help things along.

Some also believe it supports detoxification and lymphatic drainage, making your body more welcoming for pregnancy — but as of now, that’s largely anecdotal. Loop in your healthcare provider if you’re thinking about trying it, so you can make sure it fits your personal health situation.

What are the benefits of castor oil for fertility?

At this point, there’s mostly personal and traditional evidence (rather than large-scale clinical research) for castor oil’s fertility benefits. That said, plenty of people swear by it for things like:

  • Alleviate congestion in the abdomen area
  • Repair tissues while increasing circulation and blood flow
  • Support ovarian and uterine health
  • Promote fallopian tube health
  • Support healthy endometrial growth
  • Alleviate PMS symptoms
  • Improve lymphatic circulation
  • Detoxify the liver
  • Reduce inflammation

woman pouring castor oil from a small bottle

Castor oil for male fertility

Fertility isn’t just about ovulation and uterine health — men’s sperm health matters, too. Some people think castor oil’s anti-inflammatory properties can be good for male fertility. But there’s also research suggesting that castor oil might have contraceptive or “anti-fertility” effects in certain situations (although that research is on male rats).

Because the data is mixed and still pretty limited, it’s crucial for men to talk with a healthcare provider before using castor oil — especially if they’re hoping it’ll boost their fertility.

Is castor oil sperm-friendly?

Possibly not — some medical studies are suggesting that castor oil could have an “anti-spermatogenic agent with anti-motility properties” — not so good for sperm. But again, there just isn’t enough solid research to say either way. If you’re worried about sperm health, check in with a medical professional who can offer specific advice.

Do castor oil packs work for fertility?

One popular method of using castor oil for reproductive wellness is through castor oil packs. This approach involves soaking a flannel or cotton cloth with castor oil, placing it on your lower abdomen, and gently warming the area with a heating pad or hot water bottle.

Many people find this soothing ritual helps them relax and supports circulation to the uterus and ovaries, easing PMS symptoms and promoting an anti-inflammatory environment, which could be beneficial for improving chances of conceiving. Some also believe that castor oil packs promote a gentle “detox” effect, though much of this evidence is anecdotal.

One thing’s for sure: if you’re trying this at home, be sure to protect your bedding and clothing because castor oil is can cause some serious stains!

Using a heating pad on your uterus for fertility

If you go the castor oil pack route, the gentle heat from a heating pad (or a hot water bottle) is key. It helps the oil penetrate your skin and encourages blood flow by dilating blood vessels. Many people also find it super relaxing, which is a nice bonus if stress has been a factor in your fertility journey. Just be mindful about the temperature — comfortably warm is fine, but too much heat can cause irritation or burns.

woman getting a castor oil massage for fertility

How to apply castor oil for fertility

Ready to give castor oil packs a try? Here’s how:

  1. Check in with your doctor: Yes, it can be annoying to talk to a healthcare professional every time you want to try something new for fertility, but in this case, we’d definitely recommend it — simply because there isn’t enough evidence to suggest that castor oil actually benefits fertility (it might even be detrimental).
  2. Gather supplies: You’ll need a flannel or cotton cloth, a bottle of castor oil, a heating device (like a hot water bottle or heating pad), an old towel or plastic wrap, and comfortable clothes you don’t mind staining. There are many kits you can purchase that include a flannel cloth, castor oil, and easy-to-follow instructions. We recommend this kit by the Heritage Store, available on Amazon. Otherwise, you can find castor oil online or at holistic grocery stores like Whole Foods.
  3. Soak the cloth in castor oil: It should be oily, but not dripping.
  4. Position the pack: While lying down on an old towel or sheet, place the cloth over your abdomen (right below your belly button).
  5. Add gentle heat: Place another grungy towel or piece of plastic on top of the cloth and place your hot water bottle or heating pad on top of it.
  6. Relax: Lie on your back with your feet elevated (if possible) and relax for 30-45 minutes. You could try meditating, reading, or watching a show, if you’d like.
  7. Clean up: Remove the pack, store the cloth in a sealed container in the fridge (you can reuse it several times), and wipe away any oil residue with a gentle cleanser, like a natural soap or a combo of water and baking soda.
  8. Stay hydrated: Drink water afterward to support your body’s detoxification processes.

For maximum effectiveness, try using castor oil packs every other day for a couple of weeks in a row. That said, castor oil packs should only be used from the time your menstruation ends until ovulation occurs (also known as your “follicular stage”). If you are trying to conceive, do not use castor oil packs after ovulation.

And if you think you’re pregnant? Stop using them immediately. If you have questions or concerns about castor oil packs, please speak directly with your healthcare provider.

Can I drink castor oil for fertility?

No, it’s not recommended — drinking castor oil is mainly known for its labor-inducing reputation in full-term pregnancies and its strong laxative effects. Because it can cause cramping, nausea, and dehydration, it’s not typically recommended for fertility purposes. If you’re interested, though, talk to a healthcare professional before you try anything, since oral use can be pretty intense on your system.

woman getting a castor oil massage to aid fertility

Castor oil massage for fertility

If daily castor oil packs sound like too big of a commitment, consider a gentler castor oil massage. Some fertility-focused massage therapists integrate castor oil to support circulation in the abdomen and reproductive organs. You can even do a simple, gentle self-massage:

  1. Warm a small amount of castor oil between your palms.
  2. Use circular motions around your lower abdomen.
  3. Apply light pressure for 5 to 10 minutes.
  4. Wipe off any excess oil with a gentle cleanser.

Remember, consistency is key. Regular massages — alongside a healthy lifestyle — may offer supportive benefits for overall reproductive health, plus you get the bonus of a little self-care routine.

Is castor oil pack in pregnancy safe?

Wondering if you can continue using castor oil packs once you’re pregnant? Generally, they’re not recommended. Because castor oil may stimulate pelvic circulation and potentially induce contractions, many experts advise stopping castor oil pack use after ovulation if there’s a chance you could be pregnant, as it could be linked to chemical pregnancies or failed implantation. As always, get a professional opinion that’s based on your personal health profile.

woman using a heating pad on her uterus for fertility

So, castor oil for fertility (and beyond): yes or no?

Castor oil has a long-standing place in holistic medicine, and lots of individuals find comfort in its warming effects and potential circulatory perks. While it’s not a guaranteed solution for getting pregnant, it can be a gentle option you explore under the guidance of a healthcare provider.

If you do decide to give it a try, remember to keep it safe:

  • Use castor oil packs or a mild massage only during the appropriate time in your cycle (post-period, pre-ovulation).
  • Skip them if there’s any chance you could be pregnant.
  • Talk with your doctor about any concerns.

At the end of the day, castor oil might offer a soothing addition to your fertility routine — or it might not be for you. The most important thing is finding a balanced approach that blends holistic practices with evidence-based medical care, so you can nurture your body in a way that works best for you.


Tassia O'Callaghan is an experienced content writer and strategist, having written about a vast range of topics from chemical regulations to parenting, for brands like Peanut App Ltd, Scary Mommy, Tally Workspace, and Office Christmas. She's an advocate for realistic sustainable living, supporting small businesses (author of A-Z of Marketing for Small Businesses), and equity across all walks of life. Follow her on LinkedIn or TikTok, or see more of her work on Authory or her website.