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Worms are the commonest <span style = 'background-color: #dae8f4'>cause</span>
of anal itch. Scratching repeatedly can <span style = 'background-color: #dae8f4'>cause</span>
sores. Itchy anus can
also be due to undigested food like citrus fruits, grapes, certain spices, tomatoes, certain medicines like antibiotics
and laxatives and certain drinks like beer, milk, tea, or coffee. Anal fissures, hemorrhoids
, threadworms can
anal itch. Itch can
also be due to irritants like synthetic fiber, toiletries or fungal infection.