Definition of 頭痛の種 (ずつうのたね)
ずつうたね
                        頭痛の種
ずつうのたね
zutsuunotane
expression, noun
•
        
cause for headaches, pain in the neck, source of worry(idiom )
Related Kanji
| 頭 | head, counter for large animals | 
| 痛 | pain, hurt, damage, bruise | 
| 種 | species, kind, class, variety, seed |