Can a 5 cm corpus luteum cyst heal on its own?

Luteal cysts are physiological cysts that commonly occur in women of reproductive age. In general, a luteal cyst measuring 5 cm in diameter may still resolve spontaneously if there are no significant symptoms. However, if the luteal cyst progresses and causes obvious symptoms, spontaneous recovery should not be awaited; medical intervention is usually required to prevent complications such as cyst rupture and hemorrhage. Detailed analysis is as follows:

A luteal cyst forms after ovulation when the follicular wall collapses, causing blood vessels in the follicular membrane to rupture. The residual granulosa cells then enlarge and develop into a cyst. Luteal cysts represent a physiological phenomenon and are typically self-limiting. If the current cyst measures 5 cm but causes no abnormalities or discomfort, it often resolves on its own over time without special treatment. However, regular monitoring is still necessary afterward to prevent luteal rupture.

If a 5 cm luteal cyst gradually increases in size over time, with rapid disease progression and symptoms such as abdominal pain or abnormal vaginal bleeding, waiting for spontaneous resolution is not recommended. This is because luteal rupture or torsion could lead to severe hemorrhage, potentially endangering life. In such cases, timely hysteroscopic surgery under a physician's guidance is required to control the condition.

Asymptomatic luteal cysts may initially be managed by watchful waiting. However, any discomfort should prompt immediate medical consultation and professional management. Additionally, adequate rest is important during treatment, and strenuous activities such as running or jumping rope should be avoided.