Can You Have a Healthy Pregnancy with Behçet's Disease?

Yes, women with Behçet’s disease can have safe pregnancies and healthy babies, and the condition does not typically reduce a woman’s ability to get pregnant ^[1]. The key to a successful pregnancy is careful planning. Most specialists recommend discussing family planning with your doctor 3 to 6 months in advance so you can wait until your disease has been stable and in remission before trying to conceive ^[2][3]. By working closely with a rheumatologist and a Maternal-Fetal Medicine (MFM) specialist—an obstetrician who specializes in high-risk pregnancies—most women navigate pregnancy smoothly without major disease flare-ups ^[3][4].

Fertility and Behçet’s Disease

For most women with Behçet’s disease, fertility is completely normal ^[1]. Studies looking at ovarian reserve—the number and quality of eggs a woman has—show that women with Behçet’s have similar levels to healthy individuals ^[1][5].

However, previous treatments for severe Behçet’s disease can sometimes impact fertility. Specifically, an immunosuppressive drug called cyclophosphamide (often used for severe blood vessel or neurological complications) carries a known risk of reducing ovarian reserve or causing premature menopause ^[6][7]. If you have been treated with cyclophosphamide in the past, or if it is being considered for your treatment, discuss fertility preservation options with your care team before starting the medication ^[8].

How Pregnancy Affects Behçet’s Disease

Many women wonder if the hormonal and physical changes of pregnancy will trigger a flare-up. Fortunately, the majority of women with Behçet’s disease do not experience a worsening of their symptoms while pregnant ^[3].

Getting your disease under control before conception is the best way to keep it quiet during pregnancy ^[3][9]. A planned pregnancy during a period of remission significantly lowers the chances of active inflammation ^[9][10]. If you are in the minority of women who do experience a flare during pregnancy, your doctor has options to manage it safely. Flare-ups are typically treated by adjusting your current pregnancy-safe medications (like colchicine or biologics) or by using short courses of medications like steroids to quickly reduce inflammation without harming the baby ^[11][12].

Managing Medications

Do not stop taking your medications without speaking to your doctor, as stopping suddenly can trigger a dangerous flare. Many medications used to manage Behçet’s disease can be safely continued during pregnancy, while others must be stopped or switched well in advance due to the risk of severe birth defects (teratogenicity) ^[3]:

• Medications that MUST be stopped: Drugs such as methotrexate, mycophenolate mofetil, and thalidomide are strictly prohibited during pregnancy because they can cause severe birth defects ^[3]. You must work with your rheumatologist to stop these and switch to a safer alternative several months before you start trying to conceive.
• Colchicine: This is one of the most commonly prescribed medications for the mucocutaneous (mouth and genital sores) and joint symptoms of Behçet’s disease ^[13]. Colchicine is generally considered safe to continue throughout pregnancy and is routinely recommended to prevent flare-ups ^[13][14].
• Biologics: Certain anti-TNF therapies (like infliximab or adalimumab) are frequently used to maintain control of the disease during pregnancy, especially if you have a history of severe symptoms, and are considered safe options ^[7][15].

Your rheumatologist and obstetrician will weigh the risks of the medication against the risks of a disease flare-up to create a safe treatment plan.

Pregnancy Risks and Monitoring

Having Behçet’s disease classifies your pregnancy as “high-risk,” meaning you will need closer monitoring ^[2][4]. Active inflammation or blood vessel involvement can sometimes adversely affect the pregnancy ^[3].

• Obstetric Complications: Active inflammation, especially if it affects the placenta (placental vasculitis), can increase the risk of miscarriage, premature birth, and fetal growth restriction (a smaller-than-average baby) ^[16]. This is why achieving remission before pregnancy is so important.
• Vascular complications: Because Behçet’s disease can cause inflammation in the blood vessels (vasculopathy), doctors will monitor you closely for blood clots, especially in the period immediately after delivery ^[16][17]. Depending on your history, your doctor might prescribe blood thinners (such as heparin injections) to reduce this risk ^[16].
• Gestational diabetes: Women with Behçet’s disease have a slightly elevated risk of developing gestational diabetes ^[17].
• Neonatal Behçet’s: In extremely rare cases, babies born to mothers with Behçet’s disease may develop temporary oral sores in the first few days of life ^[18]. This is a temporary condition that goes away on its own without long-term consequences ^[18].

Labor, Delivery, and Breastfeeding

Because Behçet’s disease can cause severe genital ulcers, many patients are anxious about labor and delivery. If you have active, severe genital sores at the time of delivery, vaginal birth can be extremely painful, risk poor healing, or cause the sores to worsen ^[19].

Additionally, Behçet’s disease is characterized by a phenomenon called pathergy, where trauma to the skin triggers a new inflammatory sore ^[20]. Because a vaginal delivery can cause tissue trauma (such as natural tearing or an episiotomy), it could trigger new, painful ulcerations that complicate your recovery ^[20][19]. For these reasons, your obstetrician may recommend a scheduled Cesarean section (C-section) if you have active genital involvement or a high risk of pathergy ^[19].

After birth, many women with Behçet’s disease successfully breastfeed. Medications like colchicine and biologics (such as infliximab or adalimumab) transfer into breast milk in very low, safe amounts and are generally considered compatible with breastfeeding ^[21][22]. Always confirm your postpartum medication plan with your pediatrician and rheumatologist.