A woman experiencing abdominal discomfort went to her gynecologist for an ultrasound, only to discover something far more startling than a baby. The mom, who shares her story on TikTok under the handle @sandwitchbread, revealed her medical surprise in a video that has now amassed over 1.9 million views. She said she had been struggling with pain and unusual bleeding since giving birth to her two-year-old son and decided to see a gynecologist fearing she might be pregnant again.During the ultrasound, she noticed something on the screen, but the doctor quickly reassured her it wasn’t a baby. “When my doctor came in to share the results,” the TikToker recalled, “she looked me in the eyes and told me I had a seven-centimeter cyst, about the size of a chicken egg, called a dermoid cyst.”What Is A Dermoid Cyst?A dermoid cyst is a pocket of tissue growth that can contain normal body tissues, sometimes including hair, fluid, teeth, or skin. While this TikToker’s cyst was in her uterus, dermoid cysts are most commonly found in the ovaries. They are generally harmless but often require surgical removal. According to the National Cancer Institute, dermoid cysts are present from birth but may not be detected until later in life. These benign tumors originate from embryonic cells that become “trapped” and develop into tissues in the wrong location. Teeth and hair are frequent components, and surgery is usually recommended if the cyst causes symptoms or complications.Why Do Dermoid Cysts Have Hair and Teeth?Dermoid cysts develop hair and teeth because they arise from trapped embryonic cells (ectoderm) that can grow into skin, hair follicles, sweat glands, and even teeth, instead of forming the tissues normally found in the ovary or skin. Essentially, they are benign tumors made up of mature but misplaced body tissues from the outer layer of the embryo, which normally forms skin and related structures.Dermoid Cysts: SymptomsMost ovarian dermoid cysts remain symptom-free unless complications occur. When symptoms do appear, the most common one reported is lower abdominal pain.As the cyst enlarges, it can cause noticeable abdominal swelling and problems with the urinary or digestive system.In more severe cases, individuals might also experience:FeverIntense abdominal painUnusual vaginal bleedingUnexplained weight lossThe Office on Women’s Health notes that cysts on the ovaries can also cause:Pressure in the abdomenBloatingAbdominal swelling Pain in the lower abdomenDermoid Cysts: Possible ComplicationsSome potential complications include:Rupturing of the cyst: Though rare, ovarian dermoid cysts can burst. If the cyst’s contents leak into the abdominal cavity, it may lead to chronic inflammation of the abdominal lining (peritonitis). In some cases, leakage into the intestines or rectum can result in the material being expelled through the anus.Ovarian torsion: This occurs when the cyst twists the ligaments holding the ovary in place, which can cut off blood supply to the ovary and fallopian tube.Infection: The risk of infection is around 1–4%. Severe infections may lead to cyst rupture.Malignant transformation: Dermoid cysts are almost always benign, but in rare instances, they can become cancerous.