Castor oil has been used in traditional medicine for over 6,000 years. But lately, it’s getting new attention, with people asking: “Can castor oil help with cysts in ovaries?” As one of the most common PCOS (now PMOS) symptoms, it’s no secret why women with PMOS are asking for real, natural relief.
Research has shown castor oil, a type of vegetable oil that comes from East Africa, can help with things like constipation, hair growth, wound healing, and even labor induction. But what do studies say about castor oil and PMOS? As a Registered Dietitian and woman with PMOS myself, I understand firsthand the importance of cutting through the noise and finding what actually works.
Below, I’m using this post to explore the idea of castor oil helping treat, relieve, and dissolve ovarian cysts. I’ll also talk about how you can use castor oil and explore additional ways you can support your PMOS management journey!

Castor Oil For Cysts In Ovaries With PCOS (PMOS)
Women with polycystic ovary syndrome (PCOS), now referred to as polyendrocrine metabolic ovarian syndrome (PMOS), often experience ovarian cysts. They’re painful, solid, or fluid-filled sacs that grow on the surface of ovaries. Usually, they go away on their own and are no big deal. But, in some cases, they can burst, become cancerous, or twist your ovary. Because of this risk, most women with PMOS try to do what they can to remedy cysts.
If you’re a woman out there with PMOS, you’re likely cautious of ovarian cysts. (Though, it’s a myth that all women with polycystic ovarian syndrome/polyendrocrine metabolic ovarian syndrome experience cysts.) With that in mind, we’re going to look more into the ancient practice of utilizing castor oil for medicine. Here’s what you should know about castor oil for cysts.
What Causes Ovarian Cysts with PCOS (PMOS)?
Despite the previous name, polycystic ovary syndrome,” the small follicles commonly seen with PMOS (PCOS) aren’t actually ovarian cysts. However, women with PMOS can still develop true ovarian cysts, just like women without the condition. These are often “functional cysts,” meaning they form as part of the menstrual cycle.
One common type is a follicular cyst, which can develop when a follicle grows but doesn’t release an egg during ovulation. Instead, the follicle may continue growing and fill with fluid. Since irregular or absent ovulation is common with PMOS, understanding what’s happening throughout your cycle can be especially important.
Another type is a “corpus luteum cyst.” After ovulation, the follicle that released the egg becomes the corpus luteum, which produces hormones that help prepare the body for a potential pregnancy. Sometimes, fluid or blood collects inside it and forms a cyst.
Most functional ovarian cysts are benign and resolve on their own. Nonetheless, ovarian health is closely connected to your menstrual cycle and reproductive health overall. If you experience persistent pelvic pain, unusual bleeding, or other changes in your cycle, talk with your healthcare provider to determine what’s going on and whether further evaluation is needed.
You can learn even more by listening to my podcast episode, “Ovarian Cysts + Follicles: Understanding the Root Cause + Exploring Treatment.”
Is Castor Oil Good For Cysts?
There are no definitive studies that prove castor oil helps with dissolving ovarian cysts or reducing ovarian cysts’ size. However, there are a few research studies and years of anecdotal data that suggest it might have benefits for women with PCOS.
According to naturopathic doctors, topical use of castor oil can reduce inflammation and promote healing. Those naturally anti-inflammatory properties mean it can be a natural remedy for pain and swelling.
Here are some of the potential benefits of castor oil for women with PMOS:

Castor Oil Benefits For PCOS
- May help the body process hormones efficiently and support immune function.
- Eases constipation and other digestive issues
- May help to dissolve ovarian cysts and uterine fibroids
- May help regulate periods
- Reduces joint and body pain (even pain from scar tissue)
- Can improve metabolic imbalances and liver function
- Can lower bad cholesterol
- May ease pelvic floor pain and cramps from the menstrual cycle

How To Use Castor Oil Packs For Cysts
What You’ll Need:
- Hexane-free castor oil
- Undyed flannel (or wool)
- Heating Pad or Flaxseed or Rice Heating Pad
- Glass container
- Organic Cotton Castor Oil Pack
Instructions:
Step 1: Cut Organic Fabric into squares.
Take your fabric and cut it into 3 squares, each one about 10×10 inches. When you’re done, place them in your lidded glass container. (It’s okay if you have to fold it or stuff it.)
Step 2: Saturate fabric in castor oil.
Pour castor oil over the fabric until it’s saturated, but not dripping wet.
Step 3: Cover one side of the fabric with protective layer.
Take your fabric squares and put a protective layer of additional fabric on the side not facing your body. (This will prevent some of the castor oil from getting on all of your clothes.) An alternative option is using a plastic wrap or, if you have one, an organic cotton castor oil pack!
Step 4: Get your heating pad ready!
Simply warm up your rice or flaxseed heating pad in the microwave, or plug in your electric heating pad! Or, here’s another option: simply use a hot water bottle; it’s surprisingly just as effective as traditional warm compresses.
Step 5: Relax with a castor oil heating pad.
Now, lay down and place the castor oil pack oil-side down on one ovary for 45-60 minutes with the heating pad layered on top! (The castor oil can stain fabrics, so wear clothes and use blankets you don’t mind getting oil-stained.)
Step 6: Store it for later.
You can actually reuse this pack for a while! Just put it in your container and into the fridge, and break it out whenever you need it again.
When Not to Use Castor Oil Packs
While castor oil packs are generally used as a gentle wellness practice, there are certain times when it’s best to skip them. For example, castor oil has traditionally been used to help induce labor. Because of this, many healthcare professionals recommend not using it during pregnancy or while actively trying to conceive unless specifically instructed otherwise.
You should also avoid applying castor oil over broken, irritated, or infected skin, as it may cause further irritation. If you have sensitive skin, consider testing a small amount first to see how your skin responds.
Finally, if you take prescription medications or are managing an existing health condition, talk with your doctor before adding castor oil packs to your routine. Even natural wellness practices aren’t appropriate for everyone, and your healthcare provider can help you decide what makes sense for your unique needs.
When to See a Doctor About an Ovarian Cyst
Most ovarian cysts are harmless and may resolve on their own, but it’s still important to know when symptoms deserve medical attention. If you have ongoing pelvic pain, changes in your menstrual cycle, unusual bloating, or discomfort that isn’t improving, check with your healthcare provider.
More rarely, an ovarian cyst can rupture or contribute to ovarian torsion, which occurs when the ovary twists and affects its blood supply. Sudden, severe pelvic pain or abdominal pain, especially when accompanied by nausea, vomiting, dizziness, weakness, or heavy bleeding, should be evaluated.
In these situations, skip the castor oil and seek medical care; your doctor may prefer to remove a cyst to eliminate pain entirely. (However, every case is different!) Castor oil packs may have a place in your broader wellness routine, but they aren’t a treatment for a ruptured cyst, ovarian torsion, or another emergency.
Castor Oil For Ovarian Cysts FAQs
How Often Should You Use a Castor Oil Pack?
There isn’t a medically established schedule for using castor oil packs for ovarian cysts. If your healthcare provider is comfortable with you using them, follow the product instructions and pay attention to how your body responds rather than assuming more frequent use will provide better results.
How Long Before You Notice a Difference?
There’s no established timeline because research hasn’t shown that castor oil packs can shrink or eliminate ovarian cysts. Some people may notice temporary changes in comfort or relaxation after using a warm pack, but experiences vary from person to person.
Can Castor Oil Packs Make Cysts Worse?
There’s currently no evidence that applying a castor oil pack externally causes ovarian cysts to grow or worsen. However, it also shouldn’t be used in place of medical evaluation or treatment, particularly if your symptoms are new, persistent, or becoming more intense.
Can You Use Castor Oil Packs During Your Period?
Some people choose to avoid castor oil packs during their period, particularly if they experience heavy bleeding or significant cramping. If you’re unsure whether they’re appropriate for you during menstruation, check with your healthcare provider.
Do Castor Oil Packs Help With Pain and Discomfort?
Research specifically supporting castor oil packs for ovarian cyst pain is limited, so they shouldn’t be presented as a proven pain treatment. That said, the warmth and relaxation involved in using a pack may feel soothing for some people experiencing mild discomfort.
Castor oil packs and ovarian cysts: What to Know
If you’re a woman with PMOS struggling with ovarian cysts, know that there are real solutions out there! While castor oil is often recommended, there’s little research to support its effectiveness as a primary treatment. Instead, the best approach is to identify and address the root cause of your cysts. Plus, if you’re considering ovary removal to prevent cysts, here’s what you need to know: pros and cons of removing your ovaries.
For more tips on naturally healing your PCOS, browse my blog! I have lots of information that’ll help you manage your symptoms using diet, exercise, lifestyle, and mindset changes. Plus, you can join a community of women embarking on the same journey as you when you download The Cysterhood App. Beyond community, it’s also full of PCOS-friendly recipes, slow-weight workout videos, guides that teach you more about your PCOS body and more. Remember, there is hope for reversing your symptoms and having a lifestyle where you thrive with PCOS!
Written by Tallene Hacatoryan, MS, RD, founder and formulator of OvaFit. Tallene is a Registered Dietitian who specializes in PCOS (now called PMOS) nutrition and has PCOS herself.
Medical disclaimer: This content is for informational purposes only and is not intended as medical advice. Always consult your healthcare provider before making changes to your diet, supplements, or treatment plan.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


































