Thank you for your query.
Any swelling or inflammation in the genital area may be due to an STD
, having said this, you need not be alarmed as long as it is diagnosed and treated early there should not be any long term problems. There are however many other reasons for swelling that need not be an STD. One example would be a blocked gland. Please see a doctor to put your mind at ease.
I trust this information helps you.