Can clitoral masturbation cause uti? pain morning after foreplay with husband. also had a lot of spicy food and coffee yesterday.

Possible: It's possible. the urethra is short and it's possible to get a UTI with aggressive manipulation. The urethra is just below the clitoris. Push fluids and see if it doesn't improve on its own, but if you get more symptoms of a UTI like urinary frequency you should get checked and treated.

Urethra: The urethral opening is right below the clitoris. Yes, manual or oral stimulation can irritate the urethra and introduce an infection. The infection might be local only. It can ascend into the bladder. The remedy is high fluid intake, frequent bladder voiding, urine analysis if symptoms persist, sitz baths.