Answer:

For male:

Examine testicles for sores

Get circumcised

Wash foreskin of the penis

For female:

Avoid teenage pregnancy

Use hot compress to relieve menstrual cramps

Examine breast for lumps

Use sanitary pads when needed

Observe extra care when using the public comfort room

Both male and female:

Change underwear regularly

Wash external organs with mild soap with water

you're welcome ;)