Mangal paanch wala ghar ka vaidh kehlata hai, neki aur badnami paanch guna hi pata hai.
The one with Mars in the 5th is called the doctor of the house; he gets goodness and infamy exactly five times over.
The 5th house is the house of intellect, healing, and children. Mars (Mangal) is the planet of blood, surgery, and medicine.
When Mars sits in the 5th house, the person naturally develops a deep understanding of medicine and home remedies. Even without a medical degree, they become the "Vaidh" (doctor) of their family, always knowing which herb or pill to take for an illness.
But the 5th house acts as a massive multiplier. Whatever this person does, the results are multiplied by five. If they do good deeds ("neki"), their fame will spread five times faster than a normal person. But if they do something unethical, their "badnami" (infamy and disgrace) will also explode five times faster, completely destroying their reputation.