A 107-year-old woman with a large horn growing from her forehead has amazed locals, who attribute her longevity to this bizarre growth.

Ms Chen has become a celebrity among residents in Puning, Guangdong, China, for her unique, horn-like growth on her forehead, which they have affectionately dubbed the 'longevity horn'.

The 10-centimetre growth has developed over several years, yet the centenarian remains in good health, with a hearty appetite and positive outlook.

Doctors identify the growth as a cutaneous horn, often associated with prolonged sun exposure.

While generally benign, experts advise monitoring such growths due to a slight risk of malignancy.

Chen's condition, however, has had minimal impact on her daily life.

Cutaneous horns are hard, keratin-based growths that resemble small horns. They are usually caused by skin conditions or underlying health issues.