Cysticerci (larval cysts) can develop in the muscles, the eyes, the brain, and/or the spinal cord.

Cystercerci in the brain or spinal cord:

• Cause the most serious form of the infection, neurocysticercosis
• Symptoms depend upon where and how many cysticerci there are
• May cause seizures and/or headaches.
• Other less common symptoms include confusion, difficulty with balance, brain swelling, and excess fluid around the brain (hydrocephalus)
• Can result in death.

Cysticerci in the muscles:

• Generally do not cause symptoms
• May cause lumps under the skin.